objective zoology for PMT
Free Biology Cbse Pmt Online Practice Test
question bank pmt zoology
1. Philadelphia chromosome is reported in patients suffering from:
(a) Insomnia
(b) Leukaemia
(c) Tuberculosis
(d) Hepatitis
Ans. (b)
2. ‘Sudan Black B’ stain is used to stain:
(a) Nucleic acid
(b) Protein
(c) Polysaccharide
(d) Lipid
Ans. (d)
3. Which one of the following said that cells originate from pre existing cells?
(a) Virchow
(b) Schleiden
(c) Robert Hooke
(d) Dujardin
Ans. (a)
4. The desmosomes are concerned with:
(a) Cell division
(b) Cell adherence
(c) Cytolysis
(d) Cellu4r excretion
Ans. (b)
5. Tectonic is the study of:
(a) Volcanoes
(b) Earth’s crust
(c) Sand dunes
(d) Sun
Ans. (a)
6. Karyolymph is:
(a) Nuclear
(b) Nuclear sap
(c) Spem membrane
(d) Cell sap
Ans. (b)
7. Terminalization is a process related with
(a) Diakinesis
(b) Cytokinesis
(c) Meiosis II
(d) Mitosis
Ans. (a)
8. Ventral root of spinal nerve is composed of:
(a) Somatic motor and visceral sensory fibres
(b) Somatic sensory and visceral sensory fibres
(c) Somatic motor and visceral motor fibres
(d) Somatic sensory and visceral motor fibres
Ans. (c)
9. Which malarial parasite has the longest incubation period?
(a) Plasmodiuin vivax
(b) Plasmodium ovale
(c) Plasmodium falciparum
(d) Plasmodium malariae
Ans. (d)
10. Pathogen for French pox is:
(a) Variola
(b) Rubeola
(c) Treponema
(d) Trachorna
Ans. (c)
11. Camouflage of Chameleon is associated with:
(a) chromomere
(b) chromozone
(c) chromoplast
(d) chromatophore
Ans. (d)
12. Stenson’s duct is associated with:
(a) Parotid gland
(b) Cardi gland
(c) Thyroid gland
(d) Mushroom gland
Ans. (a)
13. The gland controlling egg production of moulting in insects
(a) Corpora cardiacum
(b) Corpora allata
(c) Corpus callosum
(d) Corpus luteum
Ans. (b)
14. A woman showing extra Barr bodies in chromosome during amniocentesis is showing that the embryo is associated with:
(a) Klinefelter’s syndrome
(b) Edward’s syndrome
(c) Down’s syndrome
(d) Patau’s syndrome
Ans. (a)
15. Aflatoxins are produced by:
(a) Aspergillus flavus
(b) Traponema
(c) Plasmodium
(d) Penicillium chryosogenum
Ans. (b)
16. Lethal gene of Drosophila is:
(a) Curly wings (Cy)
(b) Plum eyes (Pm)
(c) Stubbles (Sub)
(d) All of these
Ans. (d)
17. Which of the following is viral disease?
(a) Diphtheria
(b) Tuberculosis
(c) Malaria
(d) Smallpox
Ans. (d)
18. Which of the following is not a plant product?
(a) Flax
(b) Cotton
(c) Hemp
(d) Silk
Ans. (d)
19. In earthworm, self fertilization can not occur due to:
(a) Hypogyny
(b) Protogymy
(c) Protoandry
(d) Epigymy
Ans. (c)
20. Chemoreceptor in Pila is:
(a) Radula
(b) Osphradium
(c) Ctenidum
(d) None of these
Ans. (b)
21. Pounched mammals are known as:
(a) Prototherians
(b) Metatherians
(c) Eutherians
(d) Therians
Ans. (b)
22. Balbiani rings are found in:
(a) Polysomes
(b) Polytene chromosomes
(c) Autosomes
(d) Non-sense chromosomes
Ans. (b)
23. Immediately after ovulation, the mammalian egg is covered by a membrane called as:
(a) Chhorion
(b) Corona radiata
(c) Zona pellucida
(d) None of these
Ans. (c)
24. A disease in many Africans which reduces oxygen uptake by blood and is genetic disease called
(a) Anaemia
(b) Haemophilia
(c) Pemecious anaemia
(d) Sickle cell anaemia
Ans. (d)
25. In cockroach, the ootheca is formed by the secretion of:
(a) Phallic gland
(b) Mushroom gland
(c) Collaterial glan4
(d) Conglabate gland
Ans. (c)
Directions: In the following questions more than one answer given may be correct select the correct answers according to the code—
Code—
(a) 1, 2 and 3 are correct
(b) 1 and 2 are correct
(c) 1, 2 and 4 are correct
(d) 1 and 3 are correct
26. In the immune system of body:
(1) Only protein serve as immunogens for cell mediated immunity
(2) Lipids and nucleic acid do not serve as immunogens
(3) Immunogenicity is an intrinsic property of a macromolecule
(4) Immune system recognises bacterial products and fungal parasites
Ans. (c)
27. The branches of trigeminal nerve are:
(1) Opthalmic
(2) Mandibular
(3) Glossopharyngeal
(4) Maxillary
Ans. (c)
28. Excessive secretion of somatotropin leads to a disorder called
(1) Giantism
(2) Acromegaly
(3) Cretinism
(4) Addison’s disease
Ans. (b)
29. LH in human female is:
(1) Facilitates luteinisation of granulosa cells of ovulated follicle
(2) Called ovulation hormone
(3) Helps in milk eyection
(4) Activate Leydig’s cell to secrete androgen
Ans. (b)
30. Correctly matched pairs are:
(1) Clitoris—erectile body in female homologous to glans penis of male
(2) Sexual inter course—coirtus
(3) Colostrum—secretion found in seminal fluid
(4) Areola—pigmented circular area around the nipple
Ans. (d)
31. The organs which have duel origin form embryonic layers:
(1) Hypophysis
(2) Adrenal gland
(3) Sense organs
(4) Pancreas
Ans. (a)
32. Correctly matched pairs are:
(1) Allopatric species—separated by distance barrier
(2) Darwin’s finches—unique to Galapagos Island
(3) Coacervates—aggregates of large complex organic compounds bound by a membrane
(4) Species are not—Lamarckism immutable
Ans. (a)
33. Amniocentesis is a method to:
(1) Detect genetic disorder in an unborn baby
(2) Prenatal sex-determination
(3) Medical termination of pregnancy
(4) Fertilize the egg
Ans. (b)
34. Biomedical technique commonly used are:
(1) Magneto—study of brain in health and encephalography disease
(2) PET imaging—measurment of cerebral blood volume and flow rate
(3) Nuclear induction method—discovered by Banting and Best
(4) Tomography—treatment by radiation
Ans. (a)
35. Which one is correct?
(1) Modem classification—based on phylogeny
(2) Artificial classification—Theophrastus
(3) Biometry—study of geographical distribution of organisms
(4) Natural classification—based on genetic and reproductive character
Ans. (c)
36. The larval forms of Taenia solium are:
(1) Hexacanth
(2) Bladder worm
(3) Miracidium
(4) Cysticercus
Ans. (c)
37. The amphibians which show parental care:
(1) Pipa americana
(2) Alytes obstetrecons
(3) Ichthyophis
(4) Rana tigrina
Ans. (b)
38. The striated muscles are characterised that:
(1) They are multinucleate and syncytial
(2) Sarcolemma is found over them
(3) Are found in pulmonary vein
(4) Jaw muscles are striated, voluntary and strongest
Ans. (c)
39. In the given statements:
(1) Fundic stomach is the site of digestion
(2) Cardiac glands are found in stomach
(3) Pepsinogen is secreted by paneth cells of crypts of lieberkuhn
(4) Gastric juice has pH 2.0
Ans. (c)
40. Identify the correctly matched pair:
(1) Uremia—excessive amount of urea in blood
(2) Hyperglycemia—excess glucose in blood
(3) Absence of factor-VIII—hemophilia
(4) X-linked disorder—glycosuria
Ans. (a)
41. Among the given statement:
(1) Larynx is larger in human males than in females
(2) The air tube in mammals is called trachea
(3) Bifurcation of trachea is called bronchi
(4) Sound producing organ of human female is syrinx
Ans. (a)
42. True statement about the respiratory process in human, is/are:
(1) Human males use thoracic rib cage and diaphragm for breathing while females use only thoracic rib cage
(2) In normal expiration the diaphragm is arched
(3) High temperature of body ptomates accelerated breathing
(4) The rate of respiration is slowest while eating food
Ans. (a)
43. 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. (b)
44. Antigenic determinant sites bind to which portions of an antibody molecule?
(1) Light chain
(2) Heavy chain
(3) Intermediate chains
(4) Plasma cells
Ans. (b)
45. Types of quill (flight) feathers are
(1) Down feathers
(2) Covert
(3) Filoplume
(4) Remiges
Ans. (c)
46. Linkage groups:
(1) Have genes which were linked together in a single chromosomes
(2) Shows independent assortment
(3) Do not show independent assortment
(4) In prokaryotes are more than one
Ans. (d)
47. G1omrular filterate is:
(1) Formed continuously by the process of ultrafilteration occurring at malpighian corpuscles in which the blood cells and the colloidal macromolecues are not allowed to pass across the filtering surface
(2) The lipid free fluid collected within the lumen of Bowman’s capsule
(3) The protein free fluid collected within the lumen of Bowman’s capsule
(4) Formed by the process of selective reabsorption
Ans. (d)
48. Robert Hooke is:
(1) Father of Cytology
(2) Coined the term ‘cell’
(3) Father of Physiology
(4) Father of Modern Genetics
Ans. (b)
49. Blood does not clot inside the vessels because
(1) Constant speedy flow of blood prevents accumulation of fibrin threads, if at all formed
(2) Absence of heparin, an anticoagulant having antithrombin activity, in blood
(3) Smoothness of the endothelial lining prevents rupture of platelets and formation of thromboplastin from them
(4) Presence of monomolecular layer of negatively charged protein adsorbed to the inner surface of endothelium which attracts the clotting factors
Ans. (d)
50. Which of the following conditions are responsible for sweating to occur?
(1) Increase of blood temperature due to excessive heat production in the body, e.g., vigorous muscular exercise
(2) Emotional conditions like fear, anger, anxiety, excitement, mental tension etc
(3) During breathing distress and cardiac abnormalities
(4) During drinking
Ans. (a)
Saturday, April 23, 2011
Zoology objective test For IAS Prelims
Zoology objective test For IAS Prelims
IAS Prelims Papers Free Download Zoology
prelims IAS zoology solved Model paper
1. Which one of the following insects is known to be primitively apterous?
(a) Pediculus
(b) Cimex
(c) Xenopsylla
(d) Lepisma
Ans. (d)
2. Match list-I with list-II and select the correct answer using the codes below the lists:
List-I List-II
A. Sea slug 1. Scaphopoda
B. Green house slug 2. Nudibranchia
C. Squids 3. Pulmonata
D. Tooth shells 4. Cephalopoda
Codes:
A B C D
(a) 4 2 3 1
(b) 4 2 1 3
(c) 2 3 4 1
(d) 2 3 1 4
Ans. (c)
3. Which one of the following pairs is not correctly matched?
(a) Asteroidea— Asterias
(b) Echinoidea—Astropecten
(c) Holothuroidea— Cucumaria
(d) Crinoidea— Antedon
Ans. (b)
4. Which one of the following pairs in not correctly matched?
(a) Monocystis — Digenetic
(b) Paramecium — Conjugation
(c) Hydra — Budding
(d) Fasciola — Hermaphrodite
Ans. (a)
5. Totipotency phenomenon in Hydra is best demonstrated by
(a) Nutritive cells
(b) Nematocysts
(c) Interstitial cells
(d) Gland cells
Ans. (c)
6. Match list-I with list-II and select the correct answer using the codes given below the lists:
List-I List-II
A. Gastropod 1. Fasciola
B. Archnida 2. Pila
C. Ciliata 3. Paramecium
D. Trematoda 4. Buthus
Codes:
A B C D
(a) 1 2 3 4
(b) 1 2 4 3
(c) 2 4 3 1
(d) 2 4 1 3
Ans. (c)
7. In Nereis, mature and ripe gametes are discharged out of the body segments through
(a) a pair of genital ducts present in each segment that open on the ventro-lateral surface
(b) a genital duct of temporary nature that opens through a temporary pore formed in dorsally situated ciliated organ
(c) nephridiopore via nephridia present in each segment
(d) a pair of large unbranched glandular pouches or caeca that open into oesophagus, and finally through anus
Ans. (c)
8. Which one of the following is the correct order in which podomeres appear in a leg of a scorpion?
(a) Trochanter, femur, patella, coxa, tibia, protarsus, tarsus
(b) Coxa, trochanter, femur, protarsus, tarsus, tibia, patella
(c) Coxa, trochanter, femur, patella, tibia, protarsus, tarsus
(d) Coxa, femur, tibia, trochanter, patella, protarsus, tarsus.
Ans. (c)
9. Snails have a hard cone-shaped external shell. When left undisturbed, the animal is able to extend itself for a considerable degree beyond the mouth of the shell. However, a portion of the body always remains concealed in the interior of the conical shell even when the animal has extended itself to its utmost. Which of the reason(s) given below explain(s) this phenomenon?
(i) The body is organically connected with the interior of the shell.
(ii) The twisted shell the torsioned body presents a physical impediment that does not allow the full animal to go out.
Select the correct answer using the codes given below:
Codes:
(a) i alone
(b) ii alone
(c) i and ii
(d) neither i nor ii
Ans. (b)
10. The juvenile hormone in insect is secreted from
(a) corpora cardiaca
(b) prothoracic gland
(c) mushroom gland
(d) corpora allata
Ans. (d)
11. The glochidium larval form of a freshwater bivalve survives on a fish host. In the fish, it is attached to the
(a) skin
(b) gills
(c) wall of alimentary canal
(d) lining of blood vessels
Ans. (b)
12. From the functional point of view, the adductor muscle of bivalve are
(a) non-striated fibres with sustained action
(b) striated fibres with sustained action
(c) slow-acting non-striated fibres
(d) quick-acting striated fibres
Ans. (d)
13. Match list-I (patterns of cleavage) with list-II (group of animals) and select the correct answer using the codes given below the lists
List-I List-II
A. Radial 1. Echinodermata
B. Spiral 2. Mollusca
C. Bilateral 3. Ascidia
D. Irregular 4. Coelenterate
Codes:
A B C D
(a) 1 2 3 4
(b) 2 13 4
(c) 1 2 4 3
(d) 2 1 4 3
Ans. (a)
1999
14. One of the major events associated with amoeboid locomotion is
(a) actin polymerization
(b) activation of acetyicholinesterase
(c) chromosome condensation
(d) microfilament disruption’
Ans. (a)
15. The protozoan species actinophrys solution is commonly known as
(a) slipper animalcule
(b) sun animalcule
(c) whell animalcule
(d) homancule
Ans. (b)
16. Consider the following statements
(i) Xenopsylla belongs to the sub-class Pterygota of the class Insecta
(ii) Locomotory organelle of Mastigophora is flagella
(iii) Euspongia is common bath sponge
(iv) Coelenterates are pseudocoelomates
Which of the above statements is/are correct?
(a) i alone
(b) i and ii
(c) i, ii and ii
(d) ii, iii and iv
Ans. (c)
17. In which one of the following animals does the same opening function both as the mouth and the anus?
(a) Ascaris
(b) Pheretima
(d) Obelia
(c) Peripatus
Ans. (d)
18. Which one of the following is not applicable to all the three helminthes, Taenia, Fasciola and Planaria?
(a) Triploblastic forms
(b) Absence of metamerism
(c) Parasitism
(d) Absence of definite circulatory and respiratory systems
Ans. (c)
19. Which one of the following pairs is not correctly matched?
(a) Ascaris lumbricoides — Round worm
(b) Enterobius vermicularis — Pin worm
(c) Drancunculus medinensis — Filarial worm
(d) Plasmodium vivax — Malarial parasite
Ans. (c)
20. Which one of the following is the correct example for a pseudocoelomate animal?
(a) Taenia solium
(b) Fasciola hepatica
(c) Schistosoma indicum
(d) Ascaris lumbricoides
Ans. (d)
21. The derids are the
(a) excretory organs situated on the side of excretory pores of ainnelids
(b) sense organs situated on each side at the level of excretory pore of nematodes
(c) associated structures near the reproductive organs of annelids
(d) excretory organs of some arthropods
Ans. (a)
22. Which one of the following annelids becomes brilliantly luminous in the dark?
(a) Pheretima
(b) Hirudo
(c) Nereis
(d) Chaetopterus
Ans. (d)
23. The following tissues exist in the body wall of earthworm
1. Epidermis
2. Longitudinal layer of muscles
3. Circular layer of muscles
4. Cuticle
5. Dermis
The correct sequence of these tissues is:
(a) 2, 1, 3, 4, 5
(b) 5, 1, 2, 4, 3
(c) 4, 2, 3, 1, 5
(d) 4, 1, 5, 3, 2
Ans. (d)
24. Most of the lower aquatic animals such as protozoans, annelids, molluscs etc., are anamonotelic, because
(a) ammonia helps in checking in flow of water into 1ody
(b) excretion of ammonia requires large amount of water which is available to these animals
(c) water available to these animals contain less nitrogen
(d) ammonia can be converted into urea
Ans. (b)
25. Molluscs with radula having rows of teeth diverging like the ribs of fan belong to
(a) Nudibranchia
(b) Scaphopoda
(c) Rhipidoglossa
(d) Docoglossa
Ans. (d)
26. Heterocotylization is a special modification during the breeding season of
(a) Loligo
(b) Octopus
(c) Nautilus
(d) Sepia
Ans. (c)
27. Ambulacral grooves are closed in
(a) Ophiuroidea
(b) Holothuroidea
(c) Crinoidea
(d) Echinoidea
Ans. (a)
28. Lambda particles in Paramecium are particles which
(a) cause the sensitive Paramecia to lyse or disintegrate
(b) induce the Paramecia to start reproducing
(c) induce the Paramecia to stop reproducing
(d) control digestion at intervals
Ans. (a)
29. Conjugation (amphimixis) type of reproduction in Paramecium is an indication of high level of specialization where individuals of
(a) different syngens participate
(b) the same syngens belonging to two opposite mating types participate
(c) same syngens and same mating type participate
(d) the same mating type participate
Ans. (b)
30. The plasma membrane of Amoeba is
(a) sufficiently firm but elastic
(b) unable to regulate the chemical exchange between the protoplasm and outside environment
(c) unable to form pseudopodia
(d) unable to perform pinocytosis through it
Ans. (a)
31. Water vascular system in Sycon exhibits which one of the following courses following water current?
(a) Ingressing water — dermal ostia — incurrent canal — prosopyle — radial canal — apopyle — spongocoel — osculum — outside
(b) Ingressing water — dermal ostia — incurrent canal — gastral ostia —spongocoel — osculum — outside
(c) Ingressing water — dermal ostia — incurrent canal — prosopyle — radial canal — apopyle - excurrent canal
osculum — outside
(d) Ingressing water — Sub-dermal space — incurrent canal — prosopyle — radial canal — apopyle — spongocoel — osculum — outside
Ans. (a)
32. In the eurypylous leucon type water vascular system, the flagellated chamber exhibits specialization over other types in having a
(a) small chamber which communicates with the excurrent canal by a tube called prosodus
(b) small chamber - which communicates with the excurrent canal by a tube called aphodus
(c) big chamber which communicates with the excurrent canal by both prosodus and aphodus
(d) small chamber which opens into excurrent canal by abroad aperture, apopyle
Ans. (d)
33. In the adult medusoid form of Obelia, the lithocysts which coordinate swimming movements are present at the bases of
(a) all the tentacles
(b) only four tentacles, juxtaposing the termini of the four radial canals
(c) eight of the tentacles, two in each quadrant
(d) sixteen tentacles which initially appear in the newly born medusa
Ans. (c)
34. Given below are some glands of Fasciola and their respective functions:
(i) Mehlis’s glands — Shell formation
(ii) Vitelline glands — Yolk formation
(iii) Prostate glands — Sperm movement during copulation
Select the correct match using the codes given below:
Codes:
(a) i and ii
(b) ii and iii
(c) i and iii
(d) i, ii and iii
Ans. (b)
35. Which one of the following features explains the process of apolysis in Taenia?
(a) Regeneration of segments
(b) Shedding of gravid proglottid
(c) Development of male reproductive organs
(d) Development of female reproductive organs
Ans. (b)
36. In which one of the following cnidarians is only one ventral siphonoglyph present?
(a) Alcyonaria
(b) Hexacorallia
(c) Hydrozoa
(d) Scyphozoa
Ans. (b)
37. In the life-cycle of members of the class Digenea, the correct sequence of larval multiplication is
(a) Miracidium-metacercaria-sporocyst with rediae-rediae with cercaria-miracidium
(b) Sporocyst with rediae-cercaria.rediae with cercaria metacercaria-miracidium
(c) Miracidium-sporocyst with rediae-rediae with cercaria-cercaria-metacercaria
(d) Metacercaria-cercaria-rediae with cercaria-sporocyst with rediae-miracidium
Ans. (c)
38. A cestode, which does not require an intermediate host is
(a) Dipkyllobothrium laturn
(b) Moniezia expansa
(c) Hymenolepis nama
(d) Taenia saginata
Ans. (c)
39. Consider the following animals
I. Ascaris (Round worm)
II. Wuchereria (Filaria worm)
III. Ancylostoma (Hookworm)
1V. Fasciola (Liver fluke)
The animals which belongs to phylum Aschehninthes are
(a) I, II and III
(b) I and II only
(c) II and III only
(d) I, II, III and IV
Ans. (a)
40. Extra-intestinal migration is characteristic of the life history of
(a) liver-fluke
(b) intestinal round-worm
(c) malarial parasite
(d) tapeworm
Ans. (b)
41. Which one of the following pigments occurs in the blood of crustaceans?
(a) Hemoglobin
(b) Haemocyanin
(c) Both (a) and (b)
(d) Chlorocruorin
Ans. (b)
42. Ecdysone, the moulting hormone in insects is liberated from
(a) corpora cardiaca
(b) prothoracic gland
(c) corpora allata
(d) X-organ
Ans. (b)
43. In which one of the following groups is the earliest known larva invariably a metanauplius?
(a) Copepoda
(b) Ostracoda
(c) Cephalocarida
(d) Branchiopoda
Ans. Any option is not correct
44. Single pair of well-developed adductor muscle and byssus gland is present in
(a) Lamellidens
(b) Mytilus
(c) Unio
(d) Pila
Ans. (b)
45. Which one of the following cephalopodan molluscs does not have the ink gland?
(a) Sepia
(b) Loligo
(c) Octopus
(d) Nautilus
Ans. (d)
46. Which one of the following molluscs does not have either an external or an internal shell?
(a) Sepia
(b) Octopus
(c) Aplysia
(d) Doris
Ans. (b)
47. In which one of the following classes of Echinodermata does one come across auricularia larva?
(a) Asteroidea
(b) Echinoidea
(c) Holothuroidea
(d) Ophiuroidea
Ans. (c)
48. Consider the following pairs:
1. Contractile — Osmoregulation vacuole
2. Syzygy — Monocystis
3. Undulating membrane — Plasmodium membrane
4. Pseudopodia — Paramecium
Which of these pairs are correctly matched?
(a) 1 and 4
(b) 2 and 4
(c) 1 and 3
(d) l and 2
Ans. (d)
49. Consider the following pairs:
(i) Lithocytrs — Obelia
(ii) Choanocytes — Sycon
(iii) Chloragogen cells — Pheretima
Which of these pairs are correctly matched?
(a) i, ii and iii
(b) i and ii
(c) i and iii
(d) ii and iii
Ans. (d)
50. Match list-I (animal phyla) with list-II (names of types of cells/tissues present in the phylum) and select the correct answer using the codes given below the lists:
List-I List-II
A. Porifera 1. Choanocytes
B. Coelenterata 2. Solenocytes
C. Platyhehminthes 3. Botryoidal tissue
D. Hirudinea 4. Cnidocytes
Codes:
A B C D
(a) 1 4 3 2
(b) 1 4 2 3
(c) 4 1 3 2
(d) 4 1 2 3
Ans. (b)
IAS Prelims Papers Free Download Zoology
prelims IAS zoology solved Model paper
1. Which one of the following insects is known to be primitively apterous?
(a) Pediculus
(b) Cimex
(c) Xenopsylla
(d) Lepisma
Ans. (d)
2. Match list-I with list-II and select the correct answer using the codes below the lists:
List-I List-II
A. Sea slug 1. Scaphopoda
B. Green house slug 2. Nudibranchia
C. Squids 3. Pulmonata
D. Tooth shells 4. Cephalopoda
Codes:
A B C D
(a) 4 2 3 1
(b) 4 2 1 3
(c) 2 3 4 1
(d) 2 3 1 4
Ans. (c)
3. Which one of the following pairs is not correctly matched?
(a) Asteroidea— Asterias
(b) Echinoidea—Astropecten
(c) Holothuroidea— Cucumaria
(d) Crinoidea— Antedon
Ans. (b)
4. Which one of the following pairs in not correctly matched?
(a) Monocystis — Digenetic
(b) Paramecium — Conjugation
(c) Hydra — Budding
(d) Fasciola — Hermaphrodite
Ans. (a)
5. Totipotency phenomenon in Hydra is best demonstrated by
(a) Nutritive cells
(b) Nematocysts
(c) Interstitial cells
(d) Gland cells
Ans. (c)
6. Match list-I with list-II and select the correct answer using the codes given below the lists:
List-I List-II
A. Gastropod 1. Fasciola
B. Archnida 2. Pila
C. Ciliata 3. Paramecium
D. Trematoda 4. Buthus
Codes:
A B C D
(a) 1 2 3 4
(b) 1 2 4 3
(c) 2 4 3 1
(d) 2 4 1 3
Ans. (c)
7. In Nereis, mature and ripe gametes are discharged out of the body segments through
(a) a pair of genital ducts present in each segment that open on the ventro-lateral surface
(b) a genital duct of temporary nature that opens through a temporary pore formed in dorsally situated ciliated organ
(c) nephridiopore via nephridia present in each segment
(d) a pair of large unbranched glandular pouches or caeca that open into oesophagus, and finally through anus
Ans. (c)
8. Which one of the following is the correct order in which podomeres appear in a leg of a scorpion?
(a) Trochanter, femur, patella, coxa, tibia, protarsus, tarsus
(b) Coxa, trochanter, femur, protarsus, tarsus, tibia, patella
(c) Coxa, trochanter, femur, patella, tibia, protarsus, tarsus
(d) Coxa, femur, tibia, trochanter, patella, protarsus, tarsus.
Ans. (c)
9. Snails have a hard cone-shaped external shell. When left undisturbed, the animal is able to extend itself for a considerable degree beyond the mouth of the shell. However, a portion of the body always remains concealed in the interior of the conical shell even when the animal has extended itself to its utmost. Which of the reason(s) given below explain(s) this phenomenon?
(i) The body is organically connected with the interior of the shell.
(ii) The twisted shell the torsioned body presents a physical impediment that does not allow the full animal to go out.
Select the correct answer using the codes given below:
Codes:
(a) i alone
(b) ii alone
(c) i and ii
(d) neither i nor ii
Ans. (b)
10. The juvenile hormone in insect is secreted from
(a) corpora cardiaca
(b) prothoracic gland
(c) mushroom gland
(d) corpora allata
Ans. (d)
11. The glochidium larval form of a freshwater bivalve survives on a fish host. In the fish, it is attached to the
(a) skin
(b) gills
(c) wall of alimentary canal
(d) lining of blood vessels
Ans. (b)
12. From the functional point of view, the adductor muscle of bivalve are
(a) non-striated fibres with sustained action
(b) striated fibres with sustained action
(c) slow-acting non-striated fibres
(d) quick-acting striated fibres
Ans. (d)
13. Match list-I (patterns of cleavage) with list-II (group of animals) and select the correct answer using the codes given below the lists
List-I List-II
A. Radial 1. Echinodermata
B. Spiral 2. Mollusca
C. Bilateral 3. Ascidia
D. Irregular 4. Coelenterate
Codes:
A B C D
(a) 1 2 3 4
(b) 2 13 4
(c) 1 2 4 3
(d) 2 1 4 3
Ans. (a)
1999
14. One of the major events associated with amoeboid locomotion is
(a) actin polymerization
(b) activation of acetyicholinesterase
(c) chromosome condensation
(d) microfilament disruption’
Ans. (a)
15. The protozoan species actinophrys solution is commonly known as
(a) slipper animalcule
(b) sun animalcule
(c) whell animalcule
(d) homancule
Ans. (b)
16. Consider the following statements
(i) Xenopsylla belongs to the sub-class Pterygota of the class Insecta
(ii) Locomotory organelle of Mastigophora is flagella
(iii) Euspongia is common bath sponge
(iv) Coelenterates are pseudocoelomates
Which of the above statements is/are correct?
(a) i alone
(b) i and ii
(c) i, ii and ii
(d) ii, iii and iv
Ans. (c)
17. In which one of the following animals does the same opening function both as the mouth and the anus?
(a) Ascaris
(b) Pheretima
(d) Obelia
(c) Peripatus
Ans. (d)
18. Which one of the following is not applicable to all the three helminthes, Taenia, Fasciola and Planaria?
(a) Triploblastic forms
(b) Absence of metamerism
(c) Parasitism
(d) Absence of definite circulatory and respiratory systems
Ans. (c)
19. Which one of the following pairs is not correctly matched?
(a) Ascaris lumbricoides — Round worm
(b) Enterobius vermicularis — Pin worm
(c) Drancunculus medinensis — Filarial worm
(d) Plasmodium vivax — Malarial parasite
Ans. (c)
20. Which one of the following is the correct example for a pseudocoelomate animal?
(a) Taenia solium
(b) Fasciola hepatica
(c) Schistosoma indicum
(d) Ascaris lumbricoides
Ans. (d)
21. The derids are the
(a) excretory organs situated on the side of excretory pores of ainnelids
(b) sense organs situated on each side at the level of excretory pore of nematodes
(c) associated structures near the reproductive organs of annelids
(d) excretory organs of some arthropods
Ans. (a)
22. Which one of the following annelids becomes brilliantly luminous in the dark?
(a) Pheretima
(b) Hirudo
(c) Nereis
(d) Chaetopterus
Ans. (d)
23. The following tissues exist in the body wall of earthworm
1. Epidermis
2. Longitudinal layer of muscles
3. Circular layer of muscles
4. Cuticle
5. Dermis
The correct sequence of these tissues is:
(a) 2, 1, 3, 4, 5
(b) 5, 1, 2, 4, 3
(c) 4, 2, 3, 1, 5
(d) 4, 1, 5, 3, 2
Ans. (d)
24. Most of the lower aquatic animals such as protozoans, annelids, molluscs etc., are anamonotelic, because
(a) ammonia helps in checking in flow of water into 1ody
(b) excretion of ammonia requires large amount of water which is available to these animals
(c) water available to these animals contain less nitrogen
(d) ammonia can be converted into urea
Ans. (b)
25. Molluscs with radula having rows of teeth diverging like the ribs of fan belong to
(a) Nudibranchia
(b) Scaphopoda
(c) Rhipidoglossa
(d) Docoglossa
Ans. (d)
26. Heterocotylization is a special modification during the breeding season of
(a) Loligo
(b) Octopus
(c) Nautilus
(d) Sepia
Ans. (c)
27. Ambulacral grooves are closed in
(a) Ophiuroidea
(b) Holothuroidea
(c) Crinoidea
(d) Echinoidea
Ans. (a)
28. Lambda particles in Paramecium are particles which
(a) cause the sensitive Paramecia to lyse or disintegrate
(b) induce the Paramecia to start reproducing
(c) induce the Paramecia to stop reproducing
(d) control digestion at intervals
Ans. (a)
29. Conjugation (amphimixis) type of reproduction in Paramecium is an indication of high level of specialization where individuals of
(a) different syngens participate
(b) the same syngens belonging to two opposite mating types participate
(c) same syngens and same mating type participate
(d) the same mating type participate
Ans. (b)
30. The plasma membrane of Amoeba is
(a) sufficiently firm but elastic
(b) unable to regulate the chemical exchange between the protoplasm and outside environment
(c) unable to form pseudopodia
(d) unable to perform pinocytosis through it
Ans. (a)
31. Water vascular system in Sycon exhibits which one of the following courses following water current?
(a) Ingressing water — dermal ostia — incurrent canal — prosopyle — radial canal — apopyle — spongocoel — osculum — outside
(b) Ingressing water — dermal ostia — incurrent canal — gastral ostia —spongocoel — osculum — outside
(c) Ingressing water — dermal ostia — incurrent canal — prosopyle — radial canal — apopyle - excurrent canal
osculum — outside
(d) Ingressing water — Sub-dermal space — incurrent canal — prosopyle — radial canal — apopyle — spongocoel — osculum — outside
Ans. (a)
32. In the eurypylous leucon type water vascular system, the flagellated chamber exhibits specialization over other types in having a
(a) small chamber which communicates with the excurrent canal by a tube called prosodus
(b) small chamber - which communicates with the excurrent canal by a tube called aphodus
(c) big chamber which communicates with the excurrent canal by both prosodus and aphodus
(d) small chamber which opens into excurrent canal by abroad aperture, apopyle
Ans. (d)
33. In the adult medusoid form of Obelia, the lithocysts which coordinate swimming movements are present at the bases of
(a) all the tentacles
(b) only four tentacles, juxtaposing the termini of the four radial canals
(c) eight of the tentacles, two in each quadrant
(d) sixteen tentacles which initially appear in the newly born medusa
Ans. (c)
34. Given below are some glands of Fasciola and their respective functions:
(i) Mehlis’s glands — Shell formation
(ii) Vitelline glands — Yolk formation
(iii) Prostate glands — Sperm movement during copulation
Select the correct match using the codes given below:
Codes:
(a) i and ii
(b) ii and iii
(c) i and iii
(d) i, ii and iii
Ans. (b)
35. Which one of the following features explains the process of apolysis in Taenia?
(a) Regeneration of segments
(b) Shedding of gravid proglottid
(c) Development of male reproductive organs
(d) Development of female reproductive organs
Ans. (b)
36. In which one of the following cnidarians is only one ventral siphonoglyph present?
(a) Alcyonaria
(b) Hexacorallia
(c) Hydrozoa
(d) Scyphozoa
Ans. (b)
37. In the life-cycle of members of the class Digenea, the correct sequence of larval multiplication is
(a) Miracidium-metacercaria-sporocyst with rediae-rediae with cercaria-miracidium
(b) Sporocyst with rediae-cercaria.rediae with cercaria metacercaria-miracidium
(c) Miracidium-sporocyst with rediae-rediae with cercaria-cercaria-metacercaria
(d) Metacercaria-cercaria-rediae with cercaria-sporocyst with rediae-miracidium
Ans. (c)
38. A cestode, which does not require an intermediate host is
(a) Dipkyllobothrium laturn
(b) Moniezia expansa
(c) Hymenolepis nama
(d) Taenia saginata
Ans. (c)
39. Consider the following animals
I. Ascaris (Round worm)
II. Wuchereria (Filaria worm)
III. Ancylostoma (Hookworm)
1V. Fasciola (Liver fluke)
The animals which belongs to phylum Aschehninthes are
(a) I, II and III
(b) I and II only
(c) II and III only
(d) I, II, III and IV
Ans. (a)
40. Extra-intestinal migration is characteristic of the life history of
(a) liver-fluke
(b) intestinal round-worm
(c) malarial parasite
(d) tapeworm
Ans. (b)
41. Which one of the following pigments occurs in the blood of crustaceans?
(a) Hemoglobin
(b) Haemocyanin
(c) Both (a) and (b)
(d) Chlorocruorin
Ans. (b)
42. Ecdysone, the moulting hormone in insects is liberated from
(a) corpora cardiaca
(b) prothoracic gland
(c) corpora allata
(d) X-organ
Ans. (b)
43. In which one of the following groups is the earliest known larva invariably a metanauplius?
(a) Copepoda
(b) Ostracoda
(c) Cephalocarida
(d) Branchiopoda
Ans. Any option is not correct
44. Single pair of well-developed adductor muscle and byssus gland is present in
(a) Lamellidens
(b) Mytilus
(c) Unio
(d) Pila
Ans. (b)
45. Which one of the following cephalopodan molluscs does not have the ink gland?
(a) Sepia
(b) Loligo
(c) Octopus
(d) Nautilus
Ans. (d)
46. Which one of the following molluscs does not have either an external or an internal shell?
(a) Sepia
(b) Octopus
(c) Aplysia
(d) Doris
Ans. (b)
47. In which one of the following classes of Echinodermata does one come across auricularia larva?
(a) Asteroidea
(b) Echinoidea
(c) Holothuroidea
(d) Ophiuroidea
Ans. (c)
48. Consider the following pairs:
1. Contractile — Osmoregulation vacuole
2. Syzygy — Monocystis
3. Undulating membrane — Plasmodium membrane
4. Pseudopodia — Paramecium
Which of these pairs are correctly matched?
(a) 1 and 4
(b) 2 and 4
(c) 1 and 3
(d) l and 2
Ans. (d)
49. Consider the following pairs:
(i) Lithocytrs — Obelia
(ii) Choanocytes — Sycon
(iii) Chloragogen cells — Pheretima
Which of these pairs are correctly matched?
(a) i, ii and iii
(b) i and ii
(c) i and iii
(d) ii and iii
Ans. (d)
50. Match list-I (animal phyla) with list-II (names of types of cells/tissues present in the phylum) and select the correct answer using the codes given below the lists:
List-I List-II
A. Porifera 1. Choanocytes
B. Coelenterata 2. Solenocytes
C. Platyhehminthes 3. Botryoidal tissue
D. Hirudinea 4. Cnidocytes
Codes:
A B C D
(a) 1 4 3 2
(b) 1 4 2 3
(c) 4 1 3 2
(d) 4 1 2 3
Ans. (b)
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