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Wednesday, February 16, 2011

Free Biology Online Practice Test

Free Biology Online Practice Test
Free Multiple Choice Questions In Biology
Free online practice tests · Biology
1. Which of the following is not vestigial in man?

(a) Tail vertebrae

(b) Nails

(c) Nictitating membrane

(d) Vermiform appendix

Ans. (b)

2. The chemical used in ‘National Malaria Eradication Programme’ is

(a) 2, 4-D

(b) BHC

(c) DDT

(d) Parathyroid

Ans. (c)

3. A eukaryotic gene contains two kinds of base sequences. Which of these plays an important role in protein synthesis?

(a) Introns

(b) Exons

(c) Both (a) and (b)

(d) None of these

Ans. (b)

4. The number of hydrogen bonds between adenine and thymine in a DNA molecule is:

(a) Two

(b) Three

(c) Four

(d) Eight

Ans. (a)

5. The enzyme, which combines with non-protein part to form a functional enzyme known a:

(a) co-enzyme

(b) Holoenzyme

(c) Apoenzyme

(d) Prosthetic group

Ans. (b)

6. Which of the following enzyme digest protein in stomach?

(a) Trypsin

(b) Pepsin

(c) Crepsin

(d) None of these

Ans. (b)

7. Passive food ingestion in Amoeba is known as:

(a) Import

(b) Invagination

(c) Circumfluence

(d) Circumvallation

Ans. (a)

8. The slime moulds are characterized by the presence of:

(a) Elaters

(b) Pseudoelaters

(c) Capillitium

(d) Capitulum

Ans. (c)

9. Ecdysone is secreted from:

(a) Insecta

(b) Trematoda

(c) Nematoda

(d) Polychaeta

Ans. (a)

10. In the life cycle of mosquito, comma-shaped stage is

(a) Larval stage

(b) Pupal stage

(c) Imago stage

(d) None of these

Ans. (b)

11. Haemocoel is found in:

(a) Hydra and Aurelia

(b) Taenia and Ascaris

(c) Cockroach and Pita

(d) Balanoglossus and Herd mania

Ans. (c)

12. The group of anamniota includes:

(a) Reptiles and birds

(b) Birds and mammals

(c) Fishes and amphibians

(d) Reptiles and mammals

Ans. (c)

13. The excretory material of bony fish is:

(a) Urea

(b) Protein

(c) Ammonia

(d) Amino acid

Ans. (c)

14. Different colour of frog skin are controlled by:

(a) Hormones

(b) Melanocytes

(c) Nervous system

(d) Both (a) and (c)

Ans. (a)

15. Blastula of frog has:

(a) Blastopore

(b) Blastocoel

(c) Archenteron

(d) Gastropore

Ans. (b)

16. Carotene pigment is found in the cells of:

(a) Dermis

(b) Epidermis

(c) Adipose cell

(d) Both (b) and (c)

Ans. (d)

17. Debove’s membrane is a layer of:

(a) Muscular tissue

(b) Epithelial tissue

(c) Connective tissue

(d) all of the above

Ans. (c)

18. Achilles tendon is associated with:

(a) Gluteus muscle

(b) Hamstring muscle

(c) Quadriceps muscle

(d) Gastrocnemius muscle

Ans. (d)

19. The leucocytes contain which of the following in large quantity?

(a) Basophils

(b) Neutrophils

(c) Eosinophils

(d) Monocytes

Ans. (b)

20. Which part of our body secreted the hormone secretin?

(a) Ileum

(b) Stomach

(c) Duodenum

(d) Oesophagus

Ans. (c)

21. During inspiration, the diaphragm:

(a) Expands

(b) Shows no change

(c) Contracts and flattens

(d) Relaxes to become dome shaped

Ans. (c)

22. The oxygen toxicity is related with:

(a) Blood poisoning

(b) Collapse of alveolar walls

(c) Failure of ventilation of lungs

(d) Both (a) and (b)

Ans. (c)

23. Cardiac output is determined by:

(a) Heart rate

(b) Stroke volume

(c) Blood flow

(d) Both (a) and (b)

Ans. (d)

24. The important function of lymph is to:

(a) Transport oxygen to the brain

(b) Transport carbon dioxide to the lungs

(c) Return RBCs to the limuloids

(d) Return interstitial fluid to the blood

Ans. (d)

25. The lining of intestine and kidneys in humans is:

(a) Keratinized

(b) Brush border

(c) Ciliated

(d) None of these

Ans. (b)

Biology for Competitive Exams

Biology for Competitive Exams
Biology Quiz Questions
biology Various MEDICAL COMPETITIVE EXAMINATIONS
1. Secretion of gastric juice is stimulated by:
(a) Pepsin
(b) Gastrin
(c) Renin
(d) Secretin
Ans. (b)
2. Which one is not correct?
(a) Humans—Ureotelic
(b) Birds—Uricotelic
(c) Lizards—Uricotelic
(d) Whale—Ammonotelic
Ans. (d)
3. Which one shows bio-luminescence?
(a) Noctiluca
(b) Polystomella
(c) Entamoeba
(d) Suctoria
Ans. (a)
4. Mantle, foot and shell are the characteristics of:
(a) Nautilus
(b) Echinus
(c) Limulus
(d) Euplectella
Ans. (a)
5. Protists are:
(i) Unicellular and prokaryote
(ii) Unicellular and eukaryote
(iii) Multicellular and eukaryote
(iv) Autotroph or heterotroph
(a) (i), (ii) and (iii)
(b) (ii), (iii) and (iv)
(c) (iii), (iv)
(d) (ii),(iv)
Ans. (d)
6. Pepsin is inactivated at pH:
(a) Below 3
(b) Below 2
(c) Above 5
(d) Above 3
Ans. (c)
7. Which one is not produced by aquaculture?
(a) Oyster
(b) Silkworm
(c) Singhara
(d) Frog
Ans. (b)
8. Progesterone is secreted by:
(a) Corpus luteum
(b) Utreus
(c) Placenta
(d) graafian follicle
Ans. (a)
9. Which one affects liver, muscle and adipose tissue?
(a) Androgen
(b) Insulin
(c) Progesterone
(d) Glucagon
Ans. (b)
10. Inner lining of blood vessels is formed by:
(a) Ciliated epithelium
(b) Squamous epithelium
(c) Cuboidal epithelium
(d) Columnar epithelium
Ans. (b)
11. Nucleated RBC is present in:
(a) Man
(b) Rat
(c) Frog
(d) Rabbit
Ans. (c)
12. Pellagra is caused by deficiency of vitamin:
(a) B1
(b) B2
(c) B5
(d) B6
Ans. (c)
13. The main excretory organ of prawn is:
(a) Green gland
(b) Flame cell
(c) Malpighian tubule
(d) Nephridia
Ans. (a)
14. Moulting hormone is secreted by:
(a) Corpora card iacum
(b) Prothoracic gland
(c) Corpora allata
(d) Neurosecretory hormone
Ans. (b)
15. Deoxyribonucleic and ribonucleic are secreted by:
(a) Liver
(b) Stonth
(c) Pancreas
(d) Kidney
Ans. (c)
16. Haemodialysis helps in patient having:
(a) Uremia
(b) Anemia
(c) Diabetes
(d) Goiter
Ans. (a)
17. X-rays are used in:
(a) ECG
(b) EEG
(c) CT-scan
(d) Endoscopy
Ans. (c)
18. Disease caused by deficiency of protein in children is
(a) Obesity
(b) Marasmus
(c) Diabetes
(d) Kwashiorkor
Ans. (d)
19. The thin filaments of a muscle fiber are made up of:
(a) Actin, troponin, tropomyosin
(b) Actin, troponin
(c) Myosin, troponin
(d) Actin, tropomyosin
Ans. (a)
20. The species, which is going to become extinct due to lack of proper care would be called:
(a) Rare
(b) Endangered
(c) Vulnerable
(d) Extinct
Ans. (b)
21. In which part of mitochondria does ATP synthesis occur?
(a) F1
(b) F0
(c) Cristae
(d) Inner membrane of mitochondria
Ans. (a)
22. Abnormal growth of the tumour in cancer is due to:
(a) Abnormal mitotic division
(b) Accumulation of body fluid
(c) Abnormal meiotic division
(d) Metastasis
Ans. (a)
23. Fat, prior to its oxidation associate with:
(a) Cyclic AMP
(b) Co-A
(c) GMP
(d) ATP
Ans. (b)
24. Schwann cell is found around:
(a) Axon
(b) Cyton
(c) Dendrite
(d) Dendron
Ans. (a)
25. Which part of retina consists of only cones?
(a) Fovea centralis
(b) Optic nerve
(c) Blind spot
(d) Orasmata
Ans. (a)

Biology 10+2 level

Biology 10+2 level
10+2 in Biology
Biology (PCB) at 10+2 level
1. Carapace is present on the dorsal surface of: (a) Elephant
(b) Tortoise
(c) Python
(d) Alligator
Ans. (b)
2. Exoskeleton is absent in:
(a) Scoliodon
(b) Frog
(c) Rabbit
(d) Fowl
Ans. (b)
3. ‘Heart, of heart’ is:
(a) SA node
(b) AV node
(c) Bundle of His
(d) Purkinje fibers
Ans. (a)
4. Which of the following is phagocytic?
(a) Monocyte
(b) RBC.
(c) Eosinophil
(d) Basophil
Ans. (b)
5. Small fish get stuck near the bottom of a shark and derives its nutrition from it. This kind of association is called as:
(a) Antibiosis
(b) commensalisms
(c) Predation
(d) Parasitism
Ans. (b)
6. Intercalated disc is found in:
(a) Muscles of heart
(b) Vertebrae
(c) Muscles of legs
(d) Public symphysis
Ans. (a)
7. Which of following is ‘immortal’?
(a) Somatic cell
(b) Glomerular cells
(c) Germ cells
(d) Cells of pituitary
Ans. (c)
8. Nerve cell does not divide because they do not have:
(a) Nucleus
(b) Centro some
(c) Golgi body
(d) Mitochondria
Ans. (b)
9. During strenuous exercise; glucose is converted into:
(a) Glycogen
(b) Pyruvic acid
(c) Starch
(d) Lactic acid
Ans. (d)
10. ‘AIDS’ is due to:
(a) Destruction of killer-T-cells
(b) Destruction of helper-T-cells
(c) Lack of interferons
(d) Autoimmunity
Ans. (b)
11. ‘Adaptation’ of eyes in dark is due to:
(a) Depletion of vision pigment in rod
(b) Depletion of vision pigment in cones
(c) Repletion of visior pigment in rods
(d) Repletion of vision pigment in cones
Ans. (c)
12. Sea gulls excrete excess of NaC1 from:
(a) Liver
(b) Lungs
(c) Nasal cavity
(d) Kidney
Ans. (c)
13. Tree of life is:
(a) Arbor vitae
(b) Pons varolii
(c) Organ of Corti
(d) Diencephalons
Ans. (a)
14. Thousands of years old mummies are still in their condition as they were before due to the non destruction of:
(a) Yellow elastic fibers
(b) White elastic fibers
(c) Collagen fibers
(d) Veins
Ans. (a)
15. Which of the following is correctly matched?
(a). Wallago attu —Lachi
(b) Tengra —Carp
(c) Catla-catla —Cat fish
(d) Paya.s —Carp
Ans. (a)
16. Two animal cells are interconnected by:
(a) Plasmodesmata
(b) Cell wall
(c) Desmosomes
(d) Plasma membrane
Ans. (c)
17. Which of the following vitamins is water soluble as well as anti-oxidant?
(a) Vitamin-B1
(b) Vitamin-A
(c) Vitamin-D
(d) Vitamin-C
Ans. (d)
18. Which of the following amino acids is not optically active?
(a) Glycine
(b) Valine
(c) Leucine
(d) Isoleucine
Ans. (a)
19. Human ear ossicles are:
(a) Incus and stapes
(b) Stapes
(c) Incus, malleus and stapes
(d) Incus and malleus
Ans. (c)
20. Transposons are:
(a) House-keeping genes
(b) Jumping genes
(c) Transporting genes
(d) Stationary genes
Ans. (b)
21. The biogenetic law of Haeckel is:
(a) Omnis vivum-e-vivum
(b) Omnis cellula-e-cellula
(c) Ontogeny repeats phylogeny
(d) Phylogeny repeats ontogeny
Ans. (c)
22. FSH is secreted by:
(a) Anterior lobe of pituitary
(b) Hypothalamus
(c) Gonads
(d) Posterior lobe of pituitary
Ans. (a)
23. Tube feet is the locomotory organ in:
(a) Starfish
(b) Jelly fish
(c) Silver fish
(d) Scoliodon
Ans. (a)
24. Flame cells are excretory organ of:
(a) Planaria
(b) Hydra
(c) Hydrilla
(d) Cockroach
Ans. (a)
25. Which of the following is not done in a wild life sanctuary?
(a) Fauna is conserved
(b) Flora is conserved
(c) Soil and flora is utilised
(d) Hunting is prohibited
Ans. (b)

MCQ ZOOLOGY BIOLOGY PMT

MCQ ZOOLOGY BIOLOGY PMT 

Free Biology Cbse Pmt Online Practice Test
PMT BIOLOGY CLASS QUIZ
1. Cockroach and other insects have blood which
(a) Resembles human blood in colour
(b) Has RBCs
(c) Circulates through arteries and veins
(d) Circulates through an open system
Ans. (d)
2. Albinos have been reported in
(a) White race
(b) Black race
(c) Both (a) and (b)
(d) None of these
Ans. (c)
3. Cranial capacity of Australopithecus was
(a) 350—450 cm3
(b) 650—700 cm3
(c) 1050—1150 cm3
(d) 1400—1450 cm3
Ans. (a)
4. Which law of evolution states that “warm-blooded” mammals of hot and humid areas have abundant melanin pigment?
(a) Dollo’s law
(b) Gloger’s law
(c) Cope’s law
(d) Gause’s law
Ans. (b)
5. Reason of death of a patient of cobra-bite is
(a) Destruction of RBC5
(b) Inactivation of nerves
(c) Permanent contraction of muscles
(d) None of the above
Ans. (b)
6. The most important comp5nent of contraceptive pills is
(a) Progesterone
(b) Growth hormone
(c) Thyroxine
(d) Luteinizing hormone
Ans. (a)
7. Yolk plug forms during
(a) morula-formation
(b) blastula-formation
(c) Gastrula
(d) Neurulation
Ans. (c)
8. In which of the following only cone cells are found?
(a) Fovea centralis
(b) Retina
(c) Fossa ovalis
(d) Blind spots
Ans. (a)
9. Hepatic portal system collects blood from
(a) Liver
(b) Lungs
(c) Kidney
(d) Alimentary canal
Ans. (d)
10. The first digit of the forearm is termed
(a) Pollex
(b) Hallux
(c) Pollux
(d) None of these
Ans. (a)
11. Bidder’s canal is meant for passage of
(a) Ova
(b) Urine
(c) Sperms
(d) All of these
Ans. (c)
12. Striped muscle fibre has
(a) One nucleus
(b) Two nucleus
(c) Many nuclei
(d) No nuclei
Ans. (c)
13. Billroth’s cords are characteristic of
(a) spinal cord
(b) Notochord
(c) Nerve cord
(d) Spleen
Ans. (d)
14. Nuhn’s glands re present in
(a) Intestine
(b) Tongue
(c) Skin
(d) Stomach
Ans. (b)
15. Amylopsin acts upon
(a) Polysaccharide in any medium
(b) Polysaccharide in acidic medium
(c) Polysaccharide in alkaline medium
(d) Polypeptides
Ans. (c)
16. Hypoxia is the condition in which less oxygen becomes available to the tissues. This may be due to
(a) Lesser oxygen in the atmosphere
(b) More CO in air
(c) Less RBCs in blood
(d) all of the above
Ans. (d)
17. Carotid labyrinth contains
(a) Olfactoreceptors
(b) Baroreceptors
(c) Chemoreceptors
(d) Phonoreceptors
Ans. (b)
18. Juxtaglomerular cells of renal cortex synthesizes a hormone called
(a) ADH
(b) Oxytoxin
(c) Renin
(d) Urochrome
Ans. (c)
19. Corpora striata occur in
(a) cerebrum
(b) Cerebellum
(c) Medulla
(d) Diencephalons
Ans. (a)
20. A point mutation comprising the substitution of purine by pyramidine is called
(a) Deletion
(b) Transition
(c) Transversion
(d) Translocation
Ans. (c)
21. Exoskeleton/scales are absent in
(a) Fishes
(b) Retiles
(c) Ichthyophis
(d) Rana tigrina
Ans. (d)
22. Gill cover is absent in
(a) Shark
(c) Salmon
(b) Labeo
(d) All of these
Ans. (a)
23. The cyst wall of Euglena is made up of
(a) Lipids
(b) Histones
(c) Carbohydrates
(d) Lipoproteins
Ans. (c)
24. The class of coelenterate which exhibits polymorphism?
(a) Hydrozoa
(b) Scyphozoa
(c) Anthozoa
(d) All of these
Ans. (a)
25. Which pairing is not correct?
(a) Stegomyia — Yellow fever
(b) Pediculus —Trench fever
(c) Culex — Malaria
(d) Xenopsylla —Bubonic plague
Ans. (c)
Section-B
Direction In the following questions more than one of the answers given may be correct. Select the correct answers and mark it according to the code.
Codes
(a) 1, 2 and 3 are correct
(b) 1 and 2 are correct
(c) 2 and 4 are correct
(d) 1 and 3 are correct
26. On the basis of nature of maternal and foetal tissue, types of placenta are
(1) Haemochorial placenta
(2) Haemoendothelial placenta
(3) Cotyledonary placenta
(4) Deciduate placenta
Ans. (2)
27. Antigenic determinant sites bind to which portions of an antibody molecule?
(1) Light chain
(2) Heavy chain
(3) Intermediate chains
(4) Plasma cells
Ans. (2)
28. Types of quill (flight) feathers are
(1) Down feathers
(2) Covert
(3) Filoplume
(4) Remiges
Ans. (3)
29. Which of the following factors rise the P50 value and shifts the Hb02 dissociaon curve to right and vice versa?
(1) Rise in PCO2
(2) Rise in H+ ions (= fall in pH)
(3) Fall in temperature
(4) Fall in diphosphoglyceric acid
Ans. (2)
30. Which of the following are fat soluble vitamins?
(1) Retinol
(2) Calciferol
(3) Tocopherol
(4) Riboflavin
Ans. (1)
31. Uric acid is an excretory product of
(1) Insects
(2) Birds
(3) Terrestrial reptiles
(4) Mammals
Ans. (1)
32. Spongy or cancellous bones are
(1) Skull bones
(2) Vertebrae
(3) Femur
(4) Ribs
Ans. (2)
33. Cowper’s gland secrete a substance to
(1) Nourish sperms
(2) Neutralize acidity
(3) Kill pathogens
(4) lubricate female’s vagina to facilitate copulation
Ans. (3)
34. The valve situated between the left atrium and left ventricle is called
(1) Bicuspid valve
(2) Tricuspid valve
(3) Mitral valve
(4) Eustachian valve
Ans. (4)
35. Bipolar neurons occur in
(1) Retina of eyes
(2) Olfactory epithelium
(3) Inner ear
(4) Brain
Ans. (1)
36. Cardiac muscles are
(1) Striated
(2) Voluntary
(3) Involuntary
(4) Nonstriated
Ans. (4)
37. Anterior lobe of pituitary gland secretes
(1) ACTH, TSH and oxytocin
(2) STH, GH and TSH
(3) TSH ADH and Prolactin
(4) FSH, GH and LH
Ans. (3)
38. Which ‘of the following is true about preen gland?
(1) Occur in birds
(2) Also known as uropygial gland
(3) Occur in bats
(4) Help in digestion
Ans. (2)
39. Cartilaginous fishes have
(1) Placoid. Scales
(2) Cycloid or ctenoid scales
(3) Scroll valve
(4) Operculum
Ans. (4)
40. Which of the following belongs to phylum Arthropoda?
(1) Cockroach
(2) Goldfish
(3) Silverfish
(4) Cuttlefish
Ans. (4)
41. Structures present in a mature proglottid are
(1) A pair of longitudinal nerve cord (lateral nerve cord)
(2) Mehli’s gland
(3) Cirrus sac
(4) One ovary and two oviducts
Ans. (1)
42. Proteolytic enzymes present in the pancreatic juice are
(1) Pepsin
(2) Elastase
(3) Salivary amylase
(4) Chymotrypsin
Ans. (3)
43. RBC and adipose tissue cells respire anaerobically because they
(1) Possess very few mitochondria
(2) require much less energy
(3) Possess very few mitochondria and a large amount of energy
(4) Possess .carbonic anhydrous
Ans. (2)
44. The coats of eyeball are
(1) Sciera
(2) Retina
(3) Conjunctiva
(4) Otolith membrane
Ans. (2)
45. Which of the following structure is absent in forelimb of frog?
(1) Brachium
(2) Web
(3) Antebrachium
(4) Tarsal
Ans. (3)
46. P-wave of ECG indicates
(1) Depolarization of atrial muscles
(2) Activation of SA-node
(3) Spread of excitation from SA node to AV node
(4) Repolarization of atria and depolarization of ventricles
Ans. (2)
47. Which of the following cranial nerves are mixed 1’
(1) Vagus
(2) Trigeminal
(3) Glossopharyngeal
(4) Auditory
Ans. (1)
48. Which of the following is correct grouping?
(1) Ectoderm—retina, epidermis, nervous system
(2) Mesoderm—ovary, urinary bladder, Kidney
(3) Mesoderm—kidney, connective tissue, testis
(4) Endoderm—thyroid, pineal gland, thymus
Ans. (4)
49. Heterochromatin
(1) Contains a highly repetitice sequence of DNA
(2) Is the inert segment of the chromosome adjacent to the centromere?
(3) Is tightly coiled during the interphase
(4) Lightly stained regions
Ans. (1)
50. Which of the following are haploid in nature?
(1) Spermatids
(2) Secondary spermatocytes
(3) Spermatogonia
(4) Primary spermatocytes
Ans. (2)

zoology biology mcq

zoology biology mcq
biology multiple choice questions
Online Biology MCQ

1. ‘Salmon’ fishes are group of fishes belonging 41 to:

(a) Cod fish

(b) Trout

(c) Bony fish

(d) Cartilaginous fish

Ans. (b)

2. Renal portal system is absent in:

(a) Reptiles

(b) Amphibians

(c) Mammals

(d) Birds

Ans. (c)

3. Water reabsorption in kidney is controlled by:

(a) Aldosteron

(b) ADN

(c) GH

(d) Oxytocin

Ans. (b)

4. Hypercromism is presence of:

(a) Same type of chromosome less than one

(b) Highly pertinacious chromosomes

(c) Same type of chromosome more than one

(d) Dark colored skin

Ans. (c)

5. Relaxin is released from:

(a) Testis

(b) Pituitary

(c) Adrenal

(d) Ovary

Ans. (d)

6. Mammary glands are modification of:

(a) Meibomian glands

(b) Sweat glands

(c) Sebaceous gland

(d) None of the above

Ans. (b)

7. A ‘drunken person’ has the earliest effect on brains

(a) Cerebrum

(b) Medulla oblongata

(c) Cerebellum

(d) Frontal

Ans. (c)

8. Antibodies are:

(a) Carbohydrates

(b) Immunoglobulin

(c) Globular proteins

(d) Extrinsic proteins

Ans. (b)

9. Fertilized ovum in human is transplanted in the uterus after:

(a) one day of fertilization

(b) 7 days of fertilization

(c) 10 days of fertilization

(d) 15 days of fertilization

Ans. (b)

10. Dinosaurs became extinct in:

(a) Permian period

(b) Triassic period

(c) Cretaceous period

(d) Jurassic period

Ans. (c)

11. An immune disease in which the body destroys the ill functioning thyroid gland itself is:

(a) Simmond’s disease

(b) Myxodema

(c) Hashimoto’s disease

(d) Hurler’s disease

Ans. (c)

12. Failure of decent of testes in scrotal sac called

(a) crypto-orchidism

(b) Vasectomy

(c) Impotency

(d) Tubectomy

Ans. (a)

13. Highest cranial capacity is present in:

(a) Peking man

(b) Java man

(c) Cro-Magnon man

(d) Neanderthal man

Ans. (c)

14. Hand of man, wing of bat, flipper of seal represents:

(a) Analogous organs

(b) Homologous organs

(c) Vestigial organs

(d) Essential organs

Ans. (b)

15. Humoral immune system comprises of:

(a) Monocytes

(b) Lymphocytes

(c) ‘B’ and ‘T’ lymphocytes

(d) RBC

Ans. (c)

16. Hydra is a:

(a) Freshwater, radial symmetrical and diploblastic animal

(b) Marine, radial symmetrical and diploblastic animal

(c) Marine, radial symmetrical and diploblastic plant

(d) Freshwater, bilateral symmetrical and diploblastic animal

Ans. (a)

17. Which DNA molecule among the following will melt at lowest temperature?

(a) 5’-G-c-A-T-G–C-T 3’

3’ C-G-T-A-T-C-G–A-5

(b) 5’-A-A-T-A-A-A-G-C-T-3’

3’-T-T-A-T-T-T-C-G-A-5’

(c) 5’-A-T-G–C-T-G-A-T 3’

3’-T-A-C-G-A-C-T-A-5’

(d) 5’-A-A-T-A-G—C-T–G-C-3’

3’-T-T-T-A-C–G–A–C–G-S’

Ans. (b)

18. Crayfish is a:

(a) Arthropod

(b) Fish

(c) Mollusc

(d) Virus

Ans. (a)

19. Leishmania tropica causes:

(a) Sleeping sickness

(b) Kala-azar

(c) Fibrosis

(d) Oriental sore

Ans. (d)

20. Shell of mollusc is produced by its:

(a) Radula

(b) Mantle

(c) Visceral mass

(d) Pedal structure

Ans. (b)

21. Limulus belongs to class:

(a) Crustacea

(b) Insect

(c) Arachnida

(d) Onychophora

Ans. (c)

22. Trypanosome causes:

(a) Sleeping sickness

(b) Kala-azar

(c) Diarrhea

(d) Colitis

Ans. (a)

23. Squid, Cuttle fish and Octopus belong to class:

(a) Decapods

(b) Cephalopodan

(c) Scaphopoda

(d) Apoda

Ans. (b)

24. Mostly reared silk worm in India is:

(a) Anthera roylei

(b) Anthera assama

(c) Anthera dorsata

(d) Bombyx mori

Ans. (d)

25. Ovulation in females is under the control of:

(a) ADH and LH

(b) LTH and TSH

(c) T3 and TSH

(d) FSH and LH

Ans. (d)

26. Honey bee species reared most widely in India in artificial hives is

(a) Apis florea

(b) Apis indica

(c) Apis dorsata

(d) Apis rejuvenate

Ans. (d)

27. Laurer’s canal is present in:

(a) Fasciola

(b) Ascaris

(c) Cockroach

(d) Taenia

Ans. (a)

28. Hormone, which helps in metamorphosis in insects is:

(a) Ecdysone

(b) Pheromone

(c) Thyroxine

(d) Pitutrine

Ans. (a)

29. Jelly over frog’s egg is formed:

(a) During fertilization

(b) After fertilization in water

(c) After fertilization outside water

(d) None of the above

Ans. (b)

30. The character common in reptiles and birds is:

(a) diaphragm

(b) Homoeothermic

(c) Teates

(d) Amnion

Ans. (d)

31. Closely related, morphologically similar sympatric populations, but reproductively isolated, are. Designated as:

(a) Clones

(b) Dine

(c) Sibling species

(d) Demes

Ans. (c)

32. Discoidal placenta is found in:

(a) Rabbit

(b) Sheep

(c) Pig

(d) Deer

Ans. (a)

33. The joint of radio-ulna with the upper arm is:

(a) Pivot joint

(b) Socket joint

(c) Fixed joint

(d) Hinge joint.

Ans. (d)

34. The blood is carried from lungs to heart by:

(a) Cardiac vessel

(b) Pulmonary vein

(c) Pulmonary artery

(d) Carotid vein

Ans. (b)

35. DNA replication takes place in:

(a) M-phase

(b) G1-phase

(c) S-phase

(d) G2-phase

Ans. (c)

36. An auto-immune disease is

(a) Hemophilia

(b) Albinism

(c) Myasthenia gravis

(d) Herpes

Ans. (c)

37. A disease common in Africans is:

(a) Pernicious anemia

(b) Sickle cell anemia

(c) Malaria

(d) Hemophilia

Ans. (b)

38. Genes are responsible for the growth and differentiation in an organism through regulation of:

(a) Translation

(b) Transcription

(c) Both (a) and (b)

(d) Transformation

Ans. (c)

39. Ultra filtration is determined by:

(a) Glomerular hydrostatic pressure

(b) Colloid osmotic pressure of blood

(c) Capsular hydrostatic pressure

(d) All of the above

Ans. (d)

40. Prolonged deficiency of nicotinic acid causes

(a) Anaemia

(b) Pellagra

(c) Osteomalacia

(d) Xerophthalmia

Ans. (b)

41. An epithelial tissue which has thin flat cells, arranged edge to edge so as to appear like close packed tiles is present in inner lining of:

(a) Stomach

(b) Chee.k

(c) Chin

(d) Ovary

Ans. (b)

42. The smallest taxonomic group of animals having a cranium, vertebral column, ventral heart, pulmonary respiration and 2 pairs of legs is in class

(a) Vertebrata

(b) Chordate

(c) Tetrapoda

(d) Agnetha

Ans. (c)

43. Arachidonic acid is:

(a) Non-essential fatty acid

(b) Essential fatty acid

(c) Poly-unsaturated fatty acid

(d) Both (b) and (c)

Ans. (d)

44. Nickel is a component of enzyme:

(a) Urease

(b) Carboxylase

(c) Nitrogenase

(d) Nitrate reductase

Ans. (a)

45. Two free rib nucleotide units are interlinked with:

(a) Peptide bond

(b) Covalent bond

(C) Hydrogen bond

(d) Phosphodiester bond

Ans. (d)

46. Induced fit theory of enzyme action was given by:

(a) Koshland

(c) Sumner

(b) Fischer

(d) Buchner

Ans. (a)

47. Pasteurization is a process carried out for 30 minutes at:

(a) 40-50°C

(c) 80-100°C

(b) 60-70°C

(d) 100-120°C

Ans. (b)

48. Which statement explains the evolutionary advantage of meiosis?

(a) It is necessary for asexual reproduction

(b) It alternates mitosis from one generation to other

(c) Genetic recombinants give variability

(d) It alters the characters of parents

Ans. (c)

49. Which of the following is a transparent tissue?

(a) Hyaline cartilage

(b) Fibrous cartilage

(c) Tendons

(d) Ligaments

Ans. (a)

50. Each spinal nerve in mammal arises from the spinal cord by two roots, a dorsal and a ventral. The ventral root is composed of:

(a) Somatic motor and visceral motor fibre

(b) Somatic motor and visceral sensory fibre

(c) Somatic sensory and visceral motor fibre

(d) Somatic sensory and visceral sensory fiber

Ans. (a)

zoology objective type questions for PMT

zoology objective type questions for PMT
Free PMT Online Practice Test
Objective type ... Zoology

1. Maltose, lactose and sucrose are
(a) Disaccharides
(b) Trisacctiarides
(c) Polysaccharides
(d) Monosaccharide
Ans. (a)
2. Select the specific pairs of DNA:
(a) Adenine and cytosine
(b) Adenine and thymine
(c) Guanine and adenine
(d) Guanine and uracil
Ans. (b)
3. Ribosomes were discovered by:
(a) Palade
(b) Porter
(c) Brown
(d) Watson
Ans. (a)
4. Which of the following does not possess contractile vacuole?
(a) Euglena
(b) Paramecium
(c) Amoeba
(d) Plasmodium
Ans. (d)
5. ‘Venus flower basket’ is the name of dried skeleton of:
(a) Euspongia
(b) Spongilla
(c) Euplectella
(d) Leucosolenia
Ans. (c)
6. AIDS was first noticed in:
(a) Russia
(b) USA
(c) France
(d) Germany
Ans. (b)
7. Polio is caused by:
(a) Bacteriophage
(b) Bacteria
(c) Virus with single stranded DNA
(d) Virus with single stranded RNA
Ans. (c)
8. Transduction in bacteria is mediated by:
(a) Plasmid
(b) Phage vector
(c) F-factor
(d) Pili
Ans. (b)
9. Parthenogenesis is common in:
(a) House fly
(b) Haney bee
(c) Drosophila
(d) None of these
Ans. (b)
10. The common method of DNA replication is:
(a) Disruptive
(b) Semiconervative
(c) Conservative
(d) Random
Ans. (b)
11. Lower jaw of mammal is made up of:
(a) Maxilla
(b) Dentary
(c) Squamosal
(d) Collumella
Ans. (b)
12. Which of the following organ remain unchanged during metamorphosis of frog’s tadpole?
(a) Heart
(b) Lung
(c) Nervous system
(d) Intestine
Ans. (c)
13. Which of the following hormone is related with iodine?
(a) Oxytocin
(b) Thyroxin
(c) Pituterin
(d) Secretin
Ans. (b)
14. Germplasm theory was proposed by:
(a) Darwin
(b) Lamarck
(c) Weismann
(d) de Vries
Ans. (c)
15. The Ornithine cycle removes two waste products from blood in liver. These are:
(a) CO2 and urea
(b) CO2 and ammonia
(c) Ammonia and urea
(d) Ammonia and uric acid
Ans. (b)
16. The main function of centromere is:
(a) Formation of RNA
(b) Movement of chromosomes
(c) Formation of DNA
(d) Duplication of DNA
Ans. (b)
17. Anabolism is:
(a) Exergonic process
(b) Destructive process
(c) Endergonic process
(d) Bidirectional process
Ans. (c)
18. Abiogenesis means
(a) Spontaneous generation
(b) Origin of life from living organisms
(c) Origin of life from living organisms
(d) Origin of life from microbes
Ans. (a)
19. Bone marrow is absent in bones of:
(a) Fish
(b) Birds
(c) Reptiles
(d) Frog
Ans. (b)
20. Secretions of ductless glands is called
(a) Pheromone
(b) Enzymes
(c) Mucous
(d) Hormone
Ans. (d)
21. In earthworm arrangement of vessels is:
(a) Different in last 15 segments
(b) Different in 1st 13 segments
(c) Same throughout body
(d) Different in 1st 10 and last 10 segments
Ans. (b)
22. Which of the following phylum belongs to Deuterostomia?
(a) Annelida
(b) Parazoa
(c) Mollusca
(d) Echinodermata
Ans. (d)
23. Cytochrome is present in:
(a) Outer membrane of mitochondria
(b) Matrix of mitochondria
(c) Matrix of mitochondria
(d) Cytoplasm of cell
Ans. (c)
24. A coral island with a central shallow lake is called as:
(a) Atoll
(b) Corallite
(c) Diatom land
(d) Coral feed
Ans. (a)
25. Protein synthesis takes place in
(a) Chloroplast
(b) Mitochondria
(c) Cytoplasm
(d) Ribosomes
Ans. (d)
26. Which of the following nerve of human being is both sensory and motor?
(a) Optic
(b) Abducens
(c) Trigeminal
(d) Olfactory
Ans. (c)
27. Lymph vessles are united to form:
(a) Lymph heart
(b) Lymph junctive
(c) Cisterna chyle
(d) Lymph jugular veins
Ans. (c)
28. Ascorbic acid is also called as
(a) Thiamine
(b) Vitamin-C
(c) Pyridoxine
(d) vitamin-B12
Ans. (b)
29. Hamburger’s phenomenon is also called as:
(a) Sodium shift
(b) Hydrogen shift
(c) Chloride shift
(d) Bicarbonate shift
Ans. (c)
30. In mammals digestion of starch starts from:
(a) Mouth
(b) Stomach
(c) Oesophagus
(d) Duodenum
Ans. (a)
31. Which of the following carries blood rich in food materials from intestine to liver?
(a) Dorsal aorta
(b) Renal portal vein
(c) Hepatic portal vein
(d) Thoracic artery
Ans. (c)
32. What is common among amylase, renin and trypsin?
(a) All are proteins
(b) All act at less than 7 pH
(c) All are produced in stomach
(d) All are hormones
Ans. (a)
33. Typhlop is a:
(a) Gtass snake
(b) Sea snake
(c) Blind snake
(d) Tree snake
Ans. (c)
34. Limbless amphibians belong to order:
(a) Anura
(b) Urodela
(c) Gymnophiana
(d) Squamata
Ans. (c)
35. Typhlosole in earthworm starts from segment number:
(a) 7
(b) 14
(c) 47
(d) 27
Ans. (d)
36. Chemoreceptor in Pila is:
(a) Radula
(b) Osphadium
(c) Canula
(d) Spiracle
Ans. (b)
37. Leydig cells secrete:
(a) Testosterone
(c) Corticosterone
(b) Oestrogen
(d) Progesterone
Ans. (a)
38. Who coined the term Ecology?
(a) Darwin
(b) Linnaeus
(c) Odum
(d) Heckle
Ans. (d)
39. Trophic levels are linked to form:
(a) Food web
(b) Food chain
(c) Autotrops
(d) Carnivores
Ans. (b)
40. Adjacent epithelial cells are held together by:
(a) Liposomes
(b) Lysosomes
(c) Microsome
(d) Desmosomes
Ans. (d)
41. Heat-islands are produced due to:
(a) Air pollution
(b) Water pollution
(c) Land pollution
(d) Noise pollution
Ans. (a)
42. Colchicines are used for:
(a) Polyploidy
(c) Monosomy
(b) Aneuploidy
(d) Trisomy
Ans. (a)
43. Sting apparatus of honey bee is a modified form of:
(a) Ovipositor
(b) Sex spine
(c) Podical gland
(d) Wax gland
Ans. (a)
44. Blood clotting is prevented by:
(a) vitamin-K
(b) Calcium ions
(c) Potassium ions
(d) Heparin
Ans. (d)
45. Phallic organs in cockroach are related to:
(a) Male reproductive system
(b) Male excretory system
(c) Male digestive system
(d) Male circulatory system
Ans. (a)
46. Haemocyanin is present in:
(a) Chordates
(b) Annelida
(c) Mollusca
(d) Porifera
Ans. (c)
47. Who coined the term biocoenosis?
(a) Karl Mobius
(b) Haeckel
(c) Ambust
(d) Lindmann
Ans. (a)
48. True nucleus is absent in:
(a) Man
(b) Rabbit
(c) Camel
(d) E. coli
Ans. (d)
49. Coelome is found between:
(a) Ectoderm and endoderm
(b) Mesoderm and ectoderm
(c) Body wall and ectoderm
(d) Mesoderm and endoderm
Ans. (d)
50. DNA of bacteria is
(a) With histones
(b) Without histones
(c) With sugar base
(d) Without sugar base
Ans. (b)

Botany Solved Quiz

Botany Solved Quiz
Get Your Botany Plant Quiz Solved
General Botany Quizz
1. Suicidal bags are also called:
(a) Ribosomes
(b) Peroxisome
(c) Glyoxysome
(d) Lysosomes
Ans. (d)
2. In Funaria the number of peristomial teeth is:
(a) 16
(b) 32
(c) 10
(d) 48
Ans. (b)
3. The stage at which the two cells, each with separated sister chromatids move towards opposite poles is:
(a) Anaphase-I
(b) anaphase-Il
(c) Metaphase-I
(d) metaphase-Il
Ans. (b)
4. Peroxisome are rich in:
(a) Reductive enzymes
(b) Lytic enzymes
(c) Oxidative enzymes
(d) Catalytic enzymes
Ans. (c)
5. The usage of binomial names, for plant species, was accepted by all after it was published by:
(a) Hooker
(b) Hutchinson
(c) Engler
(d) Linnaeus
Ans. (d)
6. During rainy seasons, the round becomes slippery because of the dense ground of:
(a) Algae
(b) Cyanobacteria
(c) Bacteria
(d) Archebacteria
Ans. (b)
7. The inflorescence of coconut is:
(a) Receme
(b) Spike
(c) Spadix
(d) Cymose
Ans. (c)
8. Most renowned phycologist of India is:
(a) K. C. Mehta
(b) J. C. Bose
(c) R. Misra
(d) M. 0. P. Iyengar
Ans. (d)
9. Resin duct of a gymnosperm us stem is an example of:
(a) Schizogenous cavity
(b) Schizolysigenous cavity
(c) Lysogenous cavity
(d) Intercellular space
Ans. (a)
10. Red algae differ from green and brown algae in having:
(a) Chlorophyll a
(b) Sexual reproduction
(c) Well developed nucleus
(d) Non-flagellated cells in the life cycle
Ans. (d)
11. The number of hydrogen bonds between adenine (A) and thymine (T) in a DNA molecule is
(a) 2
(b) 4
(c) 3
(d) 1
Ans. (a)
12. Conjugation occurs in:
(a) Spirogyra
(b) Oedogonium
(c) Chlamydomonas
(d) Ulothrix
Ans. (a)
13. Protein coat of virus is called:
(a) Capsid
(b) Cosmid
(c) Plasmid
(d) Plastid
Ans. (a)
14. Sialic acid is a constituent of:
(a) Cell wall
(b) Chromosome
(c) Dictyosome
(d) Cell membrane
Ans. (d)
15. The end product of respiration in plants are:
(a) H2O and energy
(b) Starch and O2
(c) Sugar and O2
(d) CO2. H2O and energy
Ans. (d)
16. Cycas stem contains:
(a) Pycnoxylic wood
(b) Manoxylic wood
(c) Sap wood
(d) Heart wood
Ans. (b)
17. Two distinct generation present in a single life history are common in:
(a) Mango
(b) Bacillus
(c) Dryopteris
(d) Spirogyra
Ans. (c)

18. Which Of the following is a “resurrection” plant?
(a) Lycopodium
(b) Selaginella
(c) Rhynia
(d) Marsilea
Ans. (b)
19. In correct statement about “Fungi imperfect” is:
(a) No sexual phase
(b) Species pray on nematodes
(c) Include toadstool and puffball
(d) Include Aspergillus used for making Soya sauce
Ans. (b)
20. Membrane surrounding vacuole is called:
(a) Tonoplast
(b) Nucleoplast
(c) Protoplast
(d) Vacuoplast
Ans. (a)
21. Lactose is a:
(a) Monosaccharide
(b) Polysaccharide
(c) Disaccharide
(d) Trisaccharide
Ans. (c)
22. Double helical model for DNA was produced by:
(a) Jacob and Monod
(b) Watson and Crick
(c) Khorana and Nirenbrg
(d) Beadle and Tatum
Ans. (b)
23. Among the plants listed below, point out a plant that does not fit into ecological group represented by other plants:
(a) Aloe
(b) Acacia
(c) Vallesneria
(d) Euphorbia
Ans. (c)
24. Clinging roots are found in:
(a) Orchid
(b) Trapa
(c) Podostemon
(d) Acacia
Ans. (a)
25. Datura is a classical example of:
(a) Triploidy
(b) Trisomy
(c) Monoploidy
(d) Monosomy
Ans. (b)

botany for PMT

botany for PMT 

PMT Sample Question Botany
Free Botany Online Practice Test
1. Pyruvic acid is produced at the end of:
(a) Calvin cycle
(b) Krbs cycle
(c) EMP pathway
(d) PP pathway
Ans. (c)
2. The structure that regulates the entry and exit of a material or molecule in cell is:
(a) Plasma membrane
(b) Cell wall
(c) Nuclear membrane
(d) Tonoplast
Ans. (a)
3. Heterothallism is common in:
(a) Rhizopus
(b) Cycas
(c) Mangifera
(d) Pisum
Ans. (a)
4. Oxidative phosphorylation means formation of:
(a) ATP in photosynthesis
(b) ATP in respiration
(c) Use ofO2 in photosynthesis
(d) Excretion ofO2’in respiration
Ans. (b)
5. Cystolith is made up of:
(a) Calcium oxalate
(b) Calcium carbonate
(c) Calcium phosphate
(d) Calcium silicate
Ans. (b)
6. In a lake ecosystem the dominant second trophic level is of:
(a) Phytoplanktons
(b) Zooplanktons
(c) Snakes
(d) Birds
Ans. (b)
7. Exchange of chromosome segment between maternal and paternal chromatfds during meiosis is called:
(a) Linkage
(b) Crossing over
(c) Dominance
(d) Meiosis
Ans. (b)
8. Two similar holotypes are called:
(a) Mesotype
(b) Syntype
(c) Isotype
(d) Neotype
Ans. (c)
9. Girdling experiment cannot be performed in sugarcane because:
(a) Vascular bundles are scattered
(b) Vascular bundles are in ring
(c) It is unbranched
(d) It is delicate can not withstand injury
Ans. (a)
10. The histogen layer present at the apex of root tip is:
(a) Dermatogen
(c) Periblem
(b) Calyptrogen
(d) Plerome
Ans. (b)
11. Vivipary is found in:
(a) Cicer
(c) Ricinus
(b) Rhizophora
(d) Maize
Ans. (b)
12. Important effect of SQ2 and its transformation products on plants is;
(a) Plasmolysis
(b) Destruction of cell wall
(c) Destruction of chloroplast
(d) Destruction of mitochondria
Ans. (d)
13. A Polygonum type of embryo sac is:
(a) 7 celled, 8 nucleate
(b) 8 celled, 7 nucleate
(c) 7 celled, 7 nucleate
(d) 8 celled, 8 nucleate
Ans. (c)
14. The mass flow hypothesis was first described by:
(a) Buchner
(c) Kurosawa
(b) Munch
(d) Swanson
Ans. (a)
15. Cytokinin stimulate cell for:
(a) Elongation
(b) Division
(c) Wall thickening
(d) Increase
Ans. (b)
16. The rate at which light energy is converted into chemical energy of organic molecules is known as ecosystems
(a) Net primary productivity
(b) Gross primary productivity
(c) Net secondary productivity
(d) Gross secondary productivity
Ans. (b)
17. Damage ofO3 layer is due to the harmful effect of:
(a) CO2
(b) SO2
(c) O2
(d) Chlorofluorocarbons
Ans. (d)
18. Oxysomes are present on:
(a) Cell wall
(b) Outer membrane of mitochondria
(c) Inner membrane of mitochondrial cristae
(d) Cytoplasmic membrane
Ans. (c)
19. The chief function of parenchymatous tissue is to:
(a) Synthesize food
(b) Store food
(c) Absorb moisture
(d) Conduct food
Ans. (b)
20. Low temperature treatment is called:
(a) Pasteurization
(b) Vernalization
(c) Photomorphism
(d) Fermentation
Ans. (b)
21. Which of the following type of RNA molecule is essential for protein synthesis?
(a) n-RNA
(b) t-RNA
(c) r-RNA
(d) s-RNA
Ans. (a)
22. When two genetic loci produce identical phenotype in cis-trans position, they are considered as?
(a) Pseudoalleles
(b) Multiple alleles
(c) Different genes
(d) Allelomorphs
Ans. (a)
23. Cochineal insects are useful for:
(a) Weed control
(b) Herbicide
(c) Pesticide
(d) Cactus control
Ans. (d)
24. Rotenone is:
(a) An insect hornuSne
(b) A bioherbicide
(c) A natural insecticide
(d) A natural weedicide
Ans. (c)
25. Most totipotent cell regarding plant tissue culture is:
(a) Xylem vessel
(b) Xylem tracheids
(c) Collenchyma
(d) Meristematic cell
Ans. (c)

sample Paper Biology pmt

sample Paper Biology pmt
SAMPLE PAPER FOR CBSE PMT/PET/AIEEE BIOLOGY
pmt sample papers biology
CBSE PMT Biology Screening Model Paper

1. Hormogonia are the vegetative reproductive structures of

(a) Chlamydomonas

(b) Spirogyra

(c) Oscillatoria

(d) Ulothrix

Ans. (c)

2. Azotobacter and Beijerinckia are the examples of

(a) Symbiotic nitrogen-fixers

(b) Non-symbiotic nitrogen-fixers

(c) Ammonifying bacteria

(d) Disease causing bacteria

Ans. (b)

3. Smilax a climbing genus belongs to

(a) Cucurbitaceae

(b) Solanaceae

(c) Liliaceae

(d) Cruciferae

Ans. (c)

4. In certain parts of India, muscular dystrophy is commonly found amongst the poor people because they eat cheap pulse from the plant

(a) Pisum satiuvm

(b) Lathyrus sativus

(c) Cicer arietmum

(d) Phaseolus mungo

Ans. (b)

5. If a dwarf pea plant was treated with gibberellic acid, it became as tall, as tall pea plants. If these pea plants are crossed with pure tall pea plants, what will be the phenotypic ratio in F1 generation?

(a) All dwarf plants

(b) 50% tall and 50% dwarf plants

(c) 75% tall and 25% dwarf plants

(d) 100% tall plants

Ans. (d)

6. Coichicine is obtained from Colchicum autumnal. It belongs to family

(a) Leguminoceae

(b) Solanaceae

(c) Asteraceae

(d) Liliaceae

Ans. (d)

7. Moll’s experiment explains that

(a) Carbon dioxide is essential for photosynthesis

(b) Chlorophyll and water are necessary for photosynthesis

(c) Light and water are essential for photosynthesis

(d) All of the above are correct

Ans. (a)

8. Energy transfer from one traphic level to other in a food chain is

(a) 10%

(b) 20%

(c) 1%

(d) 2%

Ans. (a)

9. Stem is reduced in

(a) Rhizome

(b) Corm

(c) Bulb

(d) Tuber

Ans. (c)

10. Heterophilly of Limnophila is

(a) Environmental

(b) Developmental

(c) Habitual

(d) Adaptive

Ans. (d)

11. Synandrous c9ndition is the fusion of

(a) Filaments only

(b) Both filaments and anthers

(c) Anthers only

(d) Petals

Ans. (b)

12. Which one yields sunn hemp?

(a) Corchorus

(b) Hibiscus-.

(c) Crotolaria

(d) Cannabis

Ans. (c)

13. Rod-shaped elongated thick-walled lignified dead cells found in seed coat of pulses

(Legumes) are

(a) Macrosciereids

(b) Astrosclereids

(c) Brachysclereids

(d) Osteosclereids

Ans. (a)

14. Decot root having more than six vascular bundles are found in

(a) Pea

(b) Sunflower

(c) Ficus

(d) Ranunculus

Ans. (c)

15. Regulator gene controls chemical synthesis (Operon concept) by

(a) Inhibiting transcription of mRNA

(b) Inhibiting enzymes

(c) Inhibiting passage of mRNA

(d) Inhibiting substrate enzyme reaction

Ans. (a)

16. ‘Illegitimate crossing over’ is another term for

(a) Transition

(b) Transversion

(c) Reciprocal translocation

(d) None of the above

Ans. (c)

17. A substance unrelated to substrate but capable of reversibly changing activity of enzyme by binding to a site other than active site is called

(a) Competitive inhibitor

(b) Non-competitive inhibitor

(c) Catalytic inhibitor

(d) Allosteric modulator/inhibitor

Ans. (d)

18. Golgi apparatus is absent in

(a) Higher plants

(b) Yeast

(c) Bacteria and blue-green algae

(d) Liver cells

Ans. (c)

19. Which one is common amongst nucleus, chloroplast and mitochondria?

(a) Cristae

(b) Thylakoids

(c) Nucleic acid

(d) Carbohydrate metabolism

Ans. (c)

20. Sporocarp is a reproductive structure of

(a) Some algae

(b) Some aquatic ferns

(c) Angiosperms having spores

(d) Bryophytes

Ans. (b)

21. Pond ecosystem shows

(a) Inverted pyramid of number

(b) Inverted pyramid of biomass

(c) Upright pyramid of biomass

(d) Inverted pyramid of energy

Ans. (b)

22. Under anaerobic conditions, bacterium

Pseudomonas changes

(a) Nitrate to molecular nitrogen

(b) Nitrate to ammonia

(c) Nitrate to nitrite

(d) Nitrite to nitrate

Ans. (a)

23. Deciduous forests have

(a) Variety of grasses

(b) Broad-leaved trees

(c) narrow-leaved trees

(d) Variety of crocodiles

Ans. (b)

24. Physiologically active form of Phytochrome is

(a) P730/Fr

(b) P660/Pr

(c) P700

(d) P680

Ans. (a)

25. The archesporium of ovule is

(a) Single celled terminal

(b) Single celled central

(c) Single celled hypodermal

(d) Single celled lateral

Ans. (c)

Section-B

Direction: In the following questions more than one of the answers given may be correct. Select the correct answers and mark it according to the code.

Codes:

(1) 1, 2 and 3 are correct

(2) 1 and 2 are correct

(3) 2 and 4 are correct ‘

(4) 1 and 3 are correct

26. Pollen tube of Cycas acts

(1) As an agent for carrying male. Gamete to the egg

(2) As a haustorium

(3) As endosperm

(4) As female cone

Ans. (2)

27. Which of the following conditions are necessary for the growth of the moulds, Mucor or Penicillium?

(1) Warmth

(2) Carbohydrate

(3) Water

(4) Light

Ans. (1)

28. Latex vessels are found in

(1) Calotropis .r

(2) Hevea

(3) Oleander

(4) Papaya

Ans. (3)

29. Which of the following characteristics are associated with halophytes plants?

(1) Presence of pneumatophores

(2) Leaves and stem have hairy and waxy covering

(3) Shows viviparous germination

(4) Leaves show Heterophilly

Ans. (4)

30. The characteristic feature of leghaemoglobin are

(1) It is a source of energy

(2) It is a pinkish colour pigment found in nodules

(3) Activated by the presence of Mg2+ ions

(4) It protects nitrogen fixing enzyme nitrogenase from oxygen

Ans. (3)

31. Cyathium is characterized by

(1) Single female flower surrounded by many male flowers

(2) As involucres of bracts enclosing all the flowers

(3) Fleshy inflorescence axis with a pear shaped cavity inside

(4) Single male flower surrounded by many female flowers

Ans. (2)

32. Parietal placentation is found in the members of

(1) Family Cucurbitaceae

(2) Family Solanaceae

(3) Family Brassicaceae

(4) Family leguminosae

Ans. (4)

33. Which of the following is true regarding Guttation?

(1) Occurs through stomata

(2) Occurs through hydathodes

(3) Loss of pure water

(4) Occurs mostly during night and early morning

Ans. (3)

34. Which of the following statements are true for complementary genes?

(1) Both the genes interact to produce a complementary new trait

(2) Pair of nonallelic genes

(3) The F2 ratio is generally 9: 7

(4) The F2 ratio is generally 9: 3: 4

Ans. (1)

35. Coenzymes

(1) Act as a donor of groups of atoms added to the substrate

(2) Act as an acceptor of groups of atoms removed from the substrate

(3) Can not be easily separated from apoenzyme

(4) Do not act as prosthetic group

Ans. (2)

36. Suckers are

(1) Formed from the internodes of underground stem

(2) Formed from the node of underground stem

(3) Roots which are formed from the upper portion of nodes

(4) Roots which are formed from the lower portion of nodes

Ans. (3)

37. Non-cyclic photophosphorylation produces

(1) NADPH

(2) ATP and O2

(3) ATP only

(4) O2 only

Ans. (2)

38. C4 pathway occurs

(1) Only in monocots

(3) In most of the dicats

(2) In monocots

(4) In few dicots

Ans. (3)

39. Link between glycolysis, Krebs’ cycle and ?-oxidation of fatty acid or carbohydrate and fat metabolism is

(1) Acetyl CoA

(2) A compound formed by oxidative de-carboxylation

(3) A 2-carbon compound

(4) oxaloacetic acid

Ans. (1)

40. The enzymes taking part in recombinant DNA technology are

(1) Restriction Endonuclease

(2) Ligase

(3) Reverse transcriptase

(4) Phosphates

Ans. (2)

41. The mode of asexual reproduction in bacteria are

(1) Formation of gametes

(2) Endospore formation

(3) Conjugation

(4) Zoospores formation

Ans. (3)

42. Acid rain is caused by

(1) Sulphur dioxide

(2) Hydrogen chloride

(3) Nitrogen oxides

(4) Phosphates

Ans. (1)

43. Censer mechanism is found in

(1) Aristolochia

(2) Antlrrhinum

(3) Papaver

(4) Cletnatis

Ans. (1)

44. Aerenchyma is present in which of the following plants?

(1) Neptunia

(2) Potamogeton

(3) Bryophyllum

(4) Vallesneria

Ans. (3)

45. One internodes long phylloclade is found in

(1) Ruscus

(2) Opuntia

(3) Asparagus

(4) Calotropis

Ans. (4)

46. In a dicot plant, the epibasal tier forms

(1) Cotyledons

(2) Plumule

(3) Hypocotyls

(4) Radical

Ans. (2)

47. Morphogenesis in plants is controlled by

(1) Auxins

(2) Gibberellins

(3) Cytokinins

(4) Abscisic acid

Ans. (4)

48. Which of the following chemical reactions are associated with photorespiration?

Ans. (1)

49. Agar-agar is

(1) A jelly like substance, employed in the manufacture of ice cream

(2) Used in culture medium for microorganisms as solidifying agent

(3) Obtained from Gelidium, Gracilaria

(4) a product of brown algae

Ans. (1)

50. Epigeal germination occurs

(1) Due to the growth and elongation of hypocotyls

(2) In papaya and cotton

(3) In maize and rice

(4) Due to elongation of epicotyls

Ans. (2)

Exams Biology Free test

Exams Biology Free test
Free Biology Online Practice Test
free online Tests for your Biology exam

1. Coralloid root is the feature of:
(a) Cycas
(b) Mosses
(c) Pinus
(d) Selaginella
Ans. (a)
2. Which of the following is an edible ‘Fungi’?
(a) Mucor
(b) Penicillium
(c) Agaricus
(d) Rhizopus
Ans. (c)
3. Chromosome complement with 2n—1 is called as:
(a) Monosomy
(b) Nullisomy
(c) Trisomy
(d) Tetrasomy
Ans. (a)
4. Energy transferred from one trophic level to another is
(a) 5%
(c) 15%
(b) 10%
(d) 20%
Ans. (b)
5. The bioassay of auxin is:
(a) Avena curvature test
(b) Callus formation
(c) Culture of fungus
(d) Seed dormancy
Ans. (a)
6. Coir which is obtained from fruit of coconut is:
(a) Endocarp
(b) Periderm
(c) Mesocarp
(d) Epicarp
Ans. (c)
7. Solarisation is:
(a) Formation of chlorophyll
(b) Destruction of chlorophyll
(c) Utilisation of sunlight
(d) Effects of solar light
Ans. (b)
8. The most primitive in the following are:
(a). cyanobacteria
(b) Bryophytes
(c) Gymnosperms
(d) Monocots
Ans. (a)
9. Bacteria are considered plant because they:
(a) Are green in color
(b) Have rigid cell wall
(c) Have chlorophyll
(d) Have stomata
Ans. (b)
10. Which is not a monocot?
(a) Rose
(b) Orchids
(c) Palms
(d) Banana
Ans. (a)
11. Endoplasmic reticulum is in continuation with:
(a) Golgi body
(b) Nuclear wall
(c) Mitochondria
(d) Cell wall
Ans. (b)
12. ‘Pneumatophores’ are present /common in:
(a) Xerophytes
(b) Hygrophytes
(c) Mesophytes
(d) Halophytes
Ans. (d)
13. During the G1-phase of cell division:
(a) RNA and proteins are synthesized
(b) DNA and proteins are synthesized
(c) Cell prepares for M-phase
(d) Cell undergoes duplication
Ans. (a)
14. During the meiotic division, the:
(a) Homologous chromosomes are separated
(b) The linkage is disturbed
(c) The homologous chromosomes do not segregate
(d) all of the above
Ans. (a)
15. In Cycas, pollination takes place in:’
(a) 3 celled stage
(b) 4 celled stage
(c) 2 celled stage
(d) 1 celled stage
Ans. (a)
16. Trimerous flower, superior ovary and axile placentation is characteristics of:
(a) Liliaceae
(b) Cucurbitaceae
(c) Solanaceae
(d) Compositae
Ans. (a)
17. Viruses possess:
(a) DNA only
(b) Nucleic acid, DNA or RNA
(c) Protein only
(d) Nucleic acid and protein
Ans. (d)
18. Maximum absorption of rainfall water is done by:
(a) Tropical deciduous forest
(b) Tropical evergreen forest
(c) Tropical savanna
(d) Scrub forest
Ans. (b)
19. Which of the following is responsible for synthesis of enzyme in seed germination?
(a) IAA
(b) Gibberellin
(c) Cytokinin
(d) Ethylene
Ans. (b)
20. Which of the following form is an algae?
(a) Equisetum
(b) Selaginella
(c) Marsilea
(d) None of these
Ans. (d)
21. Most primitive members in which roots are not present, is
(a) Psilotum
(b) Rhynia
(c) Lycopodium
(d) Selaginella
Ans. (b)
22. In which form does the food transported in plants?
(a) Sucrose
(b) Fructose
(c) Glucose
(d) Lactose
Ans. (a)
23. Largest flower is:
(a) Rafflesia
(b) Lotus
(c) Rose
(d) Lily
Ans. (a)
24. Lady finger belongs to family:
(a) Malvacea
(b) Cucurbitaceous
(c) Liliaceous
(d) Brassicaceae
Ans. (a)
25. Which of the following is biogas?
(a) CO2
(b) NO2
(c) CH4
(d) N2
Ans. (c)

MCQ botany

MCQ botany
Botany Mcq Tutorial
M.C.Q. In Botany.
1. Double fertilization was discovered by:
(a) Nawaschin
(b) Strasburger
(c) Emerson
(d) None of these
Ans. (a)
2. In photosynthesis action and absorption spectrum were related by:
(a) Von Helmont
(b) Engelmann
(c) Emerson
(d) Lavosier
Ans. (b)
3. Which one of the following doesn’t help in molecule transport?
(a) Diffusion
(b) Osmosis
(c) Surface tension
(d) Active transport
Ans. (c)
4. Stomatal opening in plants occurs due to influx of:
(a) Na
(b) K
(c) ABA
(d) Auxin
Ans. (b)
5. Energy transfer in photosynthesis occurs as:
(a) phycoerythrin ? phycocyanin?carotenoid ?chlorophyll-a
(b) chlorophyll-b ?carotenoid? phycoetythrin? chlorophyll-a
(c) phycocyanin ? phycoerytn?carotenoid ?chlorophyll-a
(d) chlorophyll-b?carotenoid? phycocyanin?chlorophyll-a
Ans. (a)
6. Litmus is obtained from:
(a) Rocella montagnei
(b) Lasallia postulata
(c) Both (a) and (b)
(d) Cladonicz crispata.
Ans. (c)
7. If a plant having yellow and round seeds was crossed with another plant having green and wrinkled seeds then F1 progeny are in the ratio:
(a) 15: 1
(b) 1:15
(c) 1: 13
(d) All yellow and round seeds
Ans. (d)
8. Commercial cork is obtained from:
(a) Flax
(b) Juglans regia
(c) Hevea brassiliansis
(d) Quercus suber
Ans. (d)
9. Tea and coffee are affected by:
(a) Phytophthora
(b) Cephaleuros
(c) Herviella
(d) Albugo Candida
Ans. (b)
10. If decomposers are removed what will happen to the ecosystem?
(a) Energy cycle is stopped
(b) Mineral cycle is stopped
(c) Consumers cannot absorb solar energy
(d) Rate of decomposition of mineral increases
Ans. (b)
11. In photosynthesis what occurs in PS-Il?
(a) It takes longer wavelength of light and e- from H2O
(b) It takes shorter wavelength of light and e- from H2O
(c) It takes longer wavelength of light and e- from NADP
(d) It takes shorter wavelength of light and e- from NADP
Ans. (b)
12. Which are sensitive to SO2 pollution?
(a) Mosses
(b) Algae
(c) Lichen
(d) Ferns
Ans. (c)
13. Though Cycas has two cotyledons, this is not included in dicot because:
(a) Naked ovule
(b) They have megaspore
(c) Appears as palm tree
(d) Has compound leaves
Ans. (a)
14. In meiosis division is:
(a) 1st reductional and lInd equational
(b) 1st equational and lInd reductional
(c) Both reductional
(d) Both educational
Ans. (a)
15. Auxin in plant means for:
(a) Cell elongation
(b) Fruit ripening
(c) Cell division
(d) Inhibit the root growth
Ans. (a)
16. The thylakoid in chloroplast are arranged as:
(a) Interconnected disc
(b) Interconnected sacs
(c) Stacked discs
(d) None of the above
Ans. (c)
17. The polidy of the pollen grain in Cyperus is:
(a) 4n
(c) 2n
(b) 3n
(d) n
Ans. (d)
18. Which of the following is used as green manure?
(a) Azolla
(b) Azczdirachta indica
(c) Crotolaria juncea
(d) Hevea brassiliarzsis
Ans. (c)
19. The non-photosynthetic, non-symbiotic N2 fixing bacteria are:
(a) Rhodobacter
(b) Spirillum
(c) Azotobacter
(d) All of these
Ans. (c)
20. In monocot roots which types of vascular bundles are found?
(a) Collateral, conjoint and closed
(b) Radial with exarch xylem
(c) Bicollateral, conjoint and closed
(d) Radial with endarch xylem
Ans. (b)
21. The modified stem of Opuntia is:
(a) Phyllode
(b) Phylloclade
(c) Cladode
(d) Stamroinode
Ans. (b)
22. Among plants “pheromones” are secreted by the cells of the following plants for given function:
(a) All plants for growth an development
(b) Yeast for facilitating mating
(c) All fungi for sexual reproduction
(d) Rhizopus for formation of zygospore
Ans. (b)
23. The gases that produce green house effect are:
(a) CH4, CFCs, CO2
(b) CO2, N2O, H2
(c) CFCs, NO2, O2
(d) CO2, N2 water vapour
Ans. (a)
24. What’s the difference between RNA and DNA?
(a) Base
(b) Sugar
(c) Sugar and base
(d) Phosphate
Ans. (c)
25. Increase in toxic concentration from one trophic level to another trophic level is called:
(a) Ecological toxification
(b) bio-magnification
(c) bioindicator
(d) Cytological effect
Ans. (b)

Solved biology for pre medical test

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Botany

1. Sciatic vein of frog opens in:
(a) Heart
(b) Kidney
(c) Pelvic region
(d) Liver
Ans. (b)
2. Which of the following is important for muscle contraction and nerve impulse transmission?
(a) Ca2+ ions
(b) Ca2+ and Mg2+ ions
(c) Mg2+ ions
(d) Fe2+ ions
Ans. (b)
3. Which of the following is a respiratory disease?
(a) Polio
(b) Arthritis
(c) Asthma
(d) Cancer
Ans. (c)
4. The extra structure that provides nutrition to the embryo is:
(a) Umbilicus
(b) Amnion
(c) Chorion
(d) Placenta
Ans. (d)
5. Heparin is synthesized in:
(a) Liver
(b) Kidney
(c) Saliva
(d) Pancreas
Ans. (a)
6. T-cells and B-cells are:
(a) Lymphocytes
(b) RBCs
(c) Natural killer cells
(d) None of the above
Ans. (a)
7. Human ancestors who left cave paintings were:
(a) Neanderthal man
(b) Cro-Magnon man
(c) Java ape man
(d) Peking man
Ans. (b)
8. Entamoeba histolytica differs from Amoeba in absence of:
(a) Pseudopodia
(b) Contractile vacuole
(c) Nucleus
(d) Ectoplasm
Ans. (b)
9. Aspirin is a/an:
(a) antibiotic
(b) Antipyretic
(c) antiseptic
(d) None of these
Ans. (b)
10. Bulls semen is stored in:
(a) Liquid CO2
(c) Liquid N2
(b) Liquid O2
(d) Ice
Ans. (c)
11. Which of the following have notochord throughout life?
(a) Birds
(b) Fish
(c) Snake
(d) Amphioxus
Ans. (d)
12. The blood of cockroach contains no respiratory pigment. It means that:
(a) Respiration in anaerobic
(b) Cockroach does not respire
(c) Oxygen goes directly into tissues by diffusion
(d) Oxygen goes into tissue by intracellular capillary system
Ans. (c)
13. Which part of an animal virus is not reproduced in multiple copies?
(a) Capsid
(b) Proteins
(c) Envelope
(d) Ribosomes
Ans. (d)
14. The echinoderms are:
(a) Arborial insects
(b) Marine animals
(c) Terrestrial insects
(d) Fresh water forms
Ans. (b)
15. Arbor vitae is composed of:
(a) Grey matter
(b) Neurogleal cells
(c) White matter
(d) All of these
Ans. (c)
16. During unfavorable conditions, the sponges form:
(a) Cyst
(b) Encyst
(c) Spicules
(d) Gemmules
Ans. (d)
17. First National Park developed in India is:
(a) Gir
(b) Kaziranga
(c) Jim Corbett
(d) None of these
Ans. (c)
18. Polymerase chain reaction is most useful in:
(a) DNA synthesis
(b) DNA amplification
(c) Protein synthesis
(d) Amino acid synthesis
Ans. (b)
19. ‘Lack jaw’ is another name of:
(a) Malaria
(b) Kala azar
(c) Tetanus
(d) Diphtheria
Ans. (c)
20. What is, ‘study of ageing’, called?
(a) Gerontology
(b) Geriatrics
(c) Anthropology
(d) Ethnology
Ans. (a)
21. Binomial nomenclature was given by:
(a) Lamarck
(b) Linnaeus
(c) Darwin
(d) Tijo and Levan
Ans. (b)
22. In parasympathetic nervous system, which of the following is released?
(a) Epinephrine
(b) Nor epinephrine
(c) Serotonin
(d) Acetylcholine
Ans. (d)
23. Ruminants belong to order:
(a) Proboscida
(b) Artiodactyla
(c) Marsupials
(d) Edentata
Ans. (b)
24. Which one is component of Ornithine cycle?
(a) Ornithine, citrulline and alanine
(b) Ornithine, citrülline and arginine
(C) Amino acid are not used
(d) Ornithine, citrulline and fumaric acid
Ans. (b)
25. In lac operon system, lac gene-I codes for:
(a) Inducer
(b) Repressor
(c) Promoter
(d) ?-galactosidase
Ans. (b)

Zoology

26. What differentiates leaf of dicots from monocots?
(a) Parallel venation
(b) Differentiation of palisade and spongy parenchyma
(c) Stomata only on upper side
(d) Stomata both on upper and lower sides
Ans. (b)
27. The presence of diversity at the junction of territories of two different habitats is known as:
(a) Bottle neck effect
(b) Edge effect
(c) Junction effect
(d) Pasteur effect
Ans. (b)
28. Fist biochemical to be produced commercially by microbial cloning and genetic engineering, is:
(a) Human insulin
(b) Penicillin
(c) Interferon’s
(d) Fertility factor
Ans. (a)
29. Selaginella possesses an outgrowth proximally:
(a) Ligule
(b) Indusium
(c) Stipule
(d) Petiole
Ans. (a)
30. Terminator gene:
(a) Help in terminating flowering
(b) Help in terminating seed germination
(c) Used in hybridization
(d) None of the above
Ans. (b)
31. A fern prothallus is bisexual. If fertilization takes place between their gametes than it is known as:
(a) Cross fertilization
(b) Self fertilization
(c) isogamous
(d) Viviparous
Ans. (b)
32. In Pisum sativum, there are 14 chromosomes. How many types of homologous pairs can be prepared?
(a) 14
(b) 7
(c) 214
(d) 210
Ans. (b)
33. Which is essential for root hair growth?
(a) Zn
(b) Ca
(c) Mo
(d) S
Ans. (b)
34. Which of the following is not the feature of gymnosperms?
(a) Parallel venation
(b) Perennial plants
(c) Distinct branches (long and short branches)
(d) Xylem with vessels
Ans. (d)
35. Chicory powder which is mixed with coffee powder is obtained from:
(a) Root
(b) Leaf
(c) Stem
(d) Seeds
Ans. (a)
36. Crown gall disease in plants is caused by:
(a) Ti-plasmid
(b) Pi-plasmid
(c) Mycoplasma
(d) Virus
Ans. (a)
37. Thigmotropism is best observed in:
(a) Roots
(b) Leaves
(c) Tendrils
(d) Stems
Ans. (c)
38. Having capacity of absorbing water used to replace cotton and used as a fuel is:
(a) Marchantia
(b) Riccia
(c) Sphagnum
(d) Funaria
Ans. (c)
39. Which of the following is secondary pollutant?
(a) NO
(b) NO2
(c) SO2
(d) PAN
Ans. (b)
40. Stem cuttings are commonly used for the propagation of:
(a) banana
(c) Mango
(b) Rose
(d) Cotton
Ans. (b)
41. Pure tall plants are crossed with pure dwarf plants. In the F1 generation, all plants were tall. These tall plants of F1 generation were selfed and the ratio of tall to dwarf plants obtained was 3: 1. This is called
(a) Dominance
(b) Inheritance
(c) Co-dominance
(d) Heredity
Ans. (a)
42. In callus culture, roots can be induced by the supply of:
(a) Auxin
(b) Cytokinin
(c) Gibberellin
(d) Ethylene
Ans. (a)
43. Edible part in ‘sorosis’, a composite fruit, is:
(a) Cotyledons
(b) Endosperm
(c) Perianth and peduncle
(d) Fleshy thalamus
Ans. (c)
44. which of the following is man made?
(a) Secale
(b) Triticale
(c) Triticum
(d) Cicer aretinum
Ans. (b)
45. Botanical name of ‘chhna’ is:
(a) Cicer aretinum
(b) Phaseolus aureus
(c) Lablab purpureus
(d) Dolichos
Ans. (a)
46. Which of the following is a true nut?
(a) Walnut
(b) Cashewnut
(c) Groundnut
(d) Pistachio
Ans. (b)
47. The edible dry fruit ‘chilgoza’ is:
(a) Fruit of Cycas
(b) Fruit of Pinus gerardiana
(c) Seed of Cycas
(d) Seed of Pinus gerardiana
Ans. (d)
48. An obligate root parasite is:
(a) Rafflesia
(b) Loran thus
(c) Viscum
(d) Striga
Ans. (a)
49. Pappus is modified:
(a) Calyx
(b) Corolla
(c) Bracts
(d) Gynoecium’s
Ans. (a)
50. Ubisch bodies are present in:
(a) Pollen tube
(b) Pollen grain
(c) Microspore
(d) Tapetum
Ans. (d)

biology for pmt

biology for pmt
PMT Medical entrance examinations.

heck out your knowledge of P Biology
1. Heparin is secreted by:
(a) Mast cell
(b) Alveolar cell
(c) Plasma cell
(d) Goblet cell
Ans. (a)
2. Antibody is produced by:
(a) B-lymphocyte
(b) Heparin
(c) T-lymphocyte
(d) Both (a) and (b)
Ans. (a)
3. Reflex action involves:
(a) spinal cord
(b) Cerbellum
(c) Medulla oblongata
(d) Optic lobe
Ans. (a)
4. Which one has no intermediate host?
(a) Taenia
(b) Ascaris
(c) Fasciola
(d) Plasmodiuin
Ans. (b)
5. In the wall of alimentary canal, what is the actual sequence from outer to inner?
(a) Serosa, longitudinal muscle, mucosa, sub mucosa
(b) Mucosa, serosa, long muscle
(c) Serosa, long muscle, circular, sub mucosa, mucosa
(d) Serosa, long muscle, sub mucosa, mucosa
Ans. (c)

6. Which one of the following can help in the diagnosis of a genetical disorder?
(a) ELISA
(b) ABO blood group
(c) PCR
(d) NMR
Ans. (c)
7. Bile helps in the digestion of fat through:
(a) Emulsification
(b) Alkalinity
(c) Forming micelles
(d) all of the above
Ans. (d)
8. In frog chromosome number is reduced to half:
(a) When 2nd polar body is separated
(b) When 2nd polar body is divided
(c) When 3rd polar body is separated
(d) When 1st polar body is separated
Ans. (d)
9. Ischihara chart is used to detect:
(a) T.B.
(b) Eyesight
(c) Colorblindness
(d) Diabetes
Ans. (b)
10. In diastole, heart is filled by;
(a) Mixed blood
(b) Venous blood
(c) Oxygenated blood
(d) Deoxygenated blood
Ans. (c)
11. Periyar sanctuary is located in:
(a) Madhya Pradesh
(b) Kerala
(c) Uttar Pradesh
(d) Assam
Ans. (b)
12. Which of the following is not an insect?
(a) Locust
(b) Lepisma
(c) Termites
(d) Spider
Ans. (d)
13. Which of the following represents the dental formula of man?
(a) 0033/3133
(b) 2033/1023
(c) 2123/2123
(d) 1003/1003
Ans. (c)
14. The children of haemophilic man and a normal woman are:
(a) All haemophilic
(b) Only daughters are haemophilic
(c) Only sons are haemophilic
(d) Neither sons nor daughters are hemophilic
Ans. (d)
15. Which cells are found only in sponges?
(a) Amoeboid cells
(b) Choanocytes
(c) Pigment cells
(d) Gland cells
Ans. (b)
16. In which of the following there is syncytial epidermis and longitudinal muscle cells are in four bands?
(a) Nematodes
(b) Platy helminthes
(c) Annelids
(d) Echinoderms
Ans. (a)
17. A person having 45 chromosomes and Y-chromosome absent is suffering from:
(a) Down’s syndrome
(b) Klinefelter’s syndrome
(c) Turners syndrome
(d) Gynandromorph
Ans. (c)
18. Albinism is caused by deficiency of:
(a) Amylase
(b) Tyrosinase
(c) Phenyl alanine
(d) Xanthenes oxidize
Ans. (b)
19. Which brain structure in rabbit is directly related to vision?
(a) Corpus albicans
(b) Hippocampal lobe
(c) Corpus callosum
(d) Corpora quadrigemina
Ans. (d)
20. Which one is not found in testis of frog?
(a) Sertoli cell
(b) Seminiferous tubule
(c) Germinal cell
(d) Interstitial cell
Ans. (a)
21. Mammalian egg has:
(a) No yolk at all
(b) Small amount of yolk
(c) Large amount of yolk
(d) Yolk concentrated at one pole
Ans. (b)
22. Nails, hoofs and horns are examples of;
(a) Bone
(b) Cartilage
(c) Connective tissue
(d) Epidermal derivatives
Ans. (d)
23. In procoelous vertebrae:
(a) Anterior centrum is convex
(b) Anterior centrum is concave
(c) Anterior centrum is saddle shaped
(d) Posterior centrum is concave
Ans. (b)
24. The Coenozoic era is often designated as:
(a) Age of fish
(b) Age of reptiles
(c) Age of mammals
(d) Age of amphibians
Ans. (c)
25. Bidder’s canal is found in:
(a) Testes of frog
(b) Kidney of frog
(c) Kidney of mammal
(d) Ovary of mammal
Ans. (b)
26. Potometer is used to measure:
(a) Ascent of sap
(b) Root pressure
(c) Transpiration
(d) Photosynthesis
Ans. (c)
27. Which one is antioxidant vitamin?
(a) Vitamin-D
(b) Vitamin-E
(c) Vitamin-B
(d) Vitamin-K
Ans. (b)
28. The net gain ATP from complete oxidation of 1 molecule of glucose in eukaryote is:
(a) 2
(b) 4
(c) 24
(d) 36
Ans. (d)
29. Which of the following workers are related as ecologist, palaeobotanist and embryologist respectively?
(a) B. Sahni, R. Mishra, P. Maheshwari
(b) R. Mishra, B. Sahni, P. Maheshwari
(c) B. Sahni, P. Maheshwari, R. Mishra
(d) P. Maheshwari, R. Mishra, B. Sahni
Ans. (b)
30. In bacteria respiration occurs in:
(a) Cytoplasmic membrane
(b) Mitochondria
(c) Nuclear membrane
(d) Endoplasmic reticulum
Ans. (a)
31. R.Q. is always less than one in:
(a) Wheat
(b) Millets
(c) Bean
(d) Castor
Ans. (d)
32. Pencils are prepared from the wood of:
(a) Pinus vinaster
(b) Juniperus virginiana
(c) Chamaecyparis piscifera
(d) Abies pindrow
Ans. (b)
33. Ageing is retarted by:
(a) ABA
(b) CKN
(c) GA
(d) C2H4
Ans. (b)

34. The form of pigment which inhibits germination is:
(a) P760
(c) P730
(b) P650
(d) All of these
Ans. (c)
35. In Hatch and Slack pathway:
(a) Chloroplast are of same type
(b) occurs Kranz anatomy where mesophyll has small chloroplast whereas bundle sheaths have granal chloroplast
(c) occurs in Kranz anatomy when mesophyll has small chloroplast whereas bundle sheath has larger, agranal chloroplast
(d) Kranz anatomy where mesophyll cell are diffused
Ans. (c)
36. The Triticale is an intergeneric hybrid between:
(a) Wheat and maize
(b) Maize and rye wheat and rye
(d) Bajra and wheat
Ans. (c)
37. The dormancy of seed is regulated by:
(a) ABA
(b) Ethylene
(c) GA-3
(d) Dihydrozeatin
Ans. (a)
38. Colchicine prevents the mitosis of the cells at which of the following stage?
(a) Anaphase
(b) Metaphase
(c) Prophase
(d) Interphase
Ans. (b)
39. For the formation of tetrasporic embryosac, how many megaspore mother cells are required?
(a) 1
(b) 2
(c) 3
(d) 4
Ans. (a)
40. DNA replication generally proceeds in a:
(a) 5’ ? 3’ direction
(b) 3’? 5’ direction
(c) 3’? 3’ direction
(d) 5’ ?5’ direction
Ans. (a)
41. Pairing of homologous chromosome occurs at which stage?
(a) Zygotene
(b) Leptotene
(c) Metaphase
(d) Pachytene
Ans. (a)
42. Interfascicular cambium is found:
(a) Between pith and vascular bundle
(b) Between two vascular bundles
(c) In the vascular bundle
(d) Outside the bundle
Ans. (b)
43. The number of essential nutrients needed in plants is:
(a) 16
(c) 4
(b) 5
(d) 8
Ans. (a)
44. To form one molecule of glyceraldehydes phosphate in Calvin cycle:
(a) 9 ATP and 36 NADPH are required
(b) 6 ATP and 6 NADPH are required
(c) 3 ATP and 3 NADPH are required
(d) 9 ATP and 6 NADPH are required
Ans. (d)
45. Water available to plants is:
(a) Run off water
(b) Gravitational water
(c) Hygroscopic water
(d) Capillary water
Ans. (d)
46. Primary precursor of IAA is:
(a) Phenylalanine
(b) Tyrosine
(c) Tryptophan
(d) Lucine
Ans. (c)
47. Algae used in space programme is:
(a) Diatom
(b) Dinoflagellates
(c) Chiamydomonas
(d) Chlorella
Ans. (d)
48. Winged pollen grains are found in:
(a) Cycas
(b) Pinus
(c) Pteris
(d) Selaginella
Ans. (b)
49. Reindeer moss is:
(a) Ckidonia sp.
(b) Cetraria sp.
(c) Usnea sp.
(d) Parmelia sp.
Ans. (a)
50. The given formula belongs to:

(a) Solanaceae
(b) Malvaceae
(c) Graminae
(d) Compositae
Ans. (b)

In the wall of alimentary canal, what is the actual sequence from outer to inner?

In the wall of alimentary canal, what is the actual sequence from outer to inner?
(a) Serosa, longitudinal muscle, mucosa, sub mucosa
(b) Mucosa, serosa, long muscle
(c) Serosa, long muscle, circular, sub mucosa, mucosa
(d) Serosa, long muscle, sub mucosa, mucosa
Ans. (c)

Which one has no intermediate host?

Which one has no intermediate host?
(a) Taenia
(b) Ascaris
(c) Fasciola
(d) Plasmodiuin
Ans. (b)

Reflex action involves:

. Reflex action involves:
(a) spinal cord
(b) Cerbellum
(c) Medulla oblongata
(d) Optic lobe
Ans. (a)

Antibody is produced by:

Antibody is produced by:
(a) B-lymphocyte
(b) Heparin
(c) T-lymphocyte
(d) Both (a) and (b)
Ans. (a)

Heparin is secreted by:

Heparin is secreted by:
(a) Mast cell
(b) Alveolar cell
(c) Plasma cell
(d) Goblet cell
Ans. (a)

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