Free Zoology quiz
zoology quiz questions and answers
Zoology Quiz Test Zoology Questions
1. Which of the following features do all gas exchange have in common?
(a) They are enclosed within ribs
(b) They are maintained at constant temperature
(c) Exchange surfaces are moist
(d) They are exposed to air
Ans. (c)
2. Vocal cords occur in
(a) pharynx
(b) Glottis
(c) Bronchial tube
(d) Larynx
Ans. (d)
3. In man, which of the following structures is analogous to the spiracles of cockroach?
(a) Alveoli
(b) Lungs
(c) Bronchioles
(d) Nostrils
Ans. (d)
4. Which of the following prevents collapsing of trachea?
(a) Diaphragm
(b) Ribs
(c) Cartilaginous discs
(d) Muscles
Ans. (c)
5. A child breathes nearly
(a) 13 times a minute
(b) 26 times a minute
(c) 52 times a minute
(d) 72 times a minute
Ans. (b)
6. When diaphragm of man is completely dome sha€l it shows
(a) End of expiration and beginning of inspiration
(b) Beginning of expiratio4nd end of inspiration
(c) Increased rate of breathing
(d) Decreased rate of breathing
Ans. (a)
7. Volume of air inspired or expired with each normLbreath is called
(a) Tidal volume
(b) Inspiratory capacity
(c) Total lung capacity
(d) Residual volume
Ans. (a)
8. Percentage of 02 present in inhaled air in man is about
(a) 21%
(b) 78%
(c) 1%
(d) 43%
Ans. (a)
9. Gas exchange in the gills of a fish is enhanced by having the blood flow in a direction opposite to the direction of water flow, a process known as
(a) Countercurrent exchange
(b) Ventilation
(c) Facilitated diffusion
(d) Active respiration
Ans. (a)
10. Chloride shift is essential for transport of
(a) CO2 and O2
(b) N2
(c) CO2
(d) O2
Ans. (c)
11. Mendel conducted his hybridisation experiment with
(a) chick pea
(b) pigeon pea
(c) garden pea
(d) wild pea
Ans. (c)
12. MENDEL was lucky in the choice of the material of his experiments, among the following, which contributed, to his success?
(a) He observed distinct inherited traits
(b) He qualitatively analysed his date
(c) He liked pea plants
(d) He considered only one character at one time
Ans. (d)
13. The year 1990 AD is highly significant for genetics due to
(a) principle of linkage
(b) chromosome theory of heredity
(c) rediscovery of mendelism
(d) discovery of genes
Ans. (c)
14. The physical manifestation of an organism’s genes is its
(a) environment
(b) phenotype
(c) genetic code
(d) genotype
Ans. (b)
15. Alleles are
(a) homologous chromosome
(b) chromosome that have crossed over
(c) alternate forms of gene
(d) linked genes
Ans. (c)
Sunday, June 26, 2011
Wednesday, June 15, 2011
Botany Solved Multiple choice Questions
Botany Solved Multiple choice Questions
Solved Multiple Choice Questions in Botany
Free Multiple Choice Botany For AIIMS PMT
1. True xerophytes have
(a) lower rate of transpiration than mesophytes
(b) transpiration rate equal to mesophytes
(c) transpiration rate higher than mesophytes
(d) no transpiration
Ans. (a)
2. Plants growing in extremely cold soils are
(a) halophytes
(b) psammophytes
(c) oxylophytes
(d) psychrophytes
Ans. (d)
3. Xerophytes have long roots
(a) due to light
(b) to draw water from deep water beds
(c) to give mechanical support
(d) none of the above
Ans. (b)
4. The orchid plants, which are found growing on the trees, are
(a) parasites
(b) epiphytes
(c) saprophytes
(d) lithophytes
Ans. (b)
5. In submerged hydrophytes functional stomata are found
(a) on lower surface of leaf
(b) on both the surface of leaf
(c) no where on the plant
(d) on upper surface of leaf
Ans. (c)
6. What is the relationship between water-fern(Azolla) and nitrogen-fixing
cyanobacteria(Anabaena) called?
(a) Symbiotic
(b) Predation
(c) Parasitic
(d) Epiphytic
Ans. (a)
7. When animals feed on other dead animals, which had died naturally or had been
killed by another animals, the relationship is termed as
(a) predation
(b) competition
(c) scavenging
(d) symbiosis
Ans. (c)
8. The first plants to reappear in a badly burned forest area will most probably be
(a) liverworts
(b) ferns
(c) grasses
(d) mosses
Ans. (b)
9. The transfer of energy from organism to organism in a natural community establishes
(a) food chains
(b) biological control
(c) natural barriers
(d) all the above
Ans. (a)
10. First link to any food chain is a green plant because
(a) fixed at one place
(b) they alone have the capacity to synthesise food
(c) they can eat every thing
(d) they respire
Ans. (b)
11. Which is a primary consumer?
(a) Scavenger
(b) Saprophyte
(c) Carnivore
(d) Herbivore
Ans. (d)
12. Trophic levels are formed by
(a) plants only
(b) animals only
(c) carnivores only
(d) organisms linked in food chain
Ans. (d)
13. Energy and nutrients enter a community by way of the
(a) producers
(b) consumers
(c) detrivores
(d) scavengers
Ans. (a)
14. The following groups of organisms represent different trophic levels. Which out of
these four has the greatest biomass?
(a) Herbivores
(b) Carnivores
(e) Autotrophs
(d) Decomposers
Ans. (c)
15. The food chain that starts from plants and goes from smaller to larger animals is
(a) predator food chain
(b) saprophytic food chain
(c) detritus food chain
(d) parasitic food chain
Ans. (a)
16. A crocodile had just eaten a lamb when a hawk saw the crocodile, attacked it and
consumed it.The hawk is in ecological terms
(a) a producer
(b) a primary consumer
(c) a secondary consumer
(d) tertiary consumer
Ans. (d)
17. Organisms of the same trophic level are
(a) deer and honey bee
(b) cheetah and wild bear
(c) snake and earthworm
(d) crow and cow
Ans. (a)
18. Driving force of ecosystem is
(a) carbohydrate in plants
(b) biomass
(c) solar energy
(d) producer
Ans. (c)
19. Which of the following is upright in all the ecosystems?
(a) Pyramid of number
(b) Pyramid of energy
(c) Pyramid of biomass
(d) All the above
Ans. (b)
20. In an aqueous environment microscopic animals and plants are collectively known as
(a) herbivores
(b) fauna and flora
(c) planktons
(d) symbionts
Ans. (c)
21. Which one of following word is related to Homo sapiens?
(a) Herbivore
(b) Carnivore
(c) Omnivore
(d) Autotroph
Ans. (c)
22. Biogeochemical cycles are also known as
(a) cycles of matter
(b) sedimentary cycles
(c) material cycling
(d) gaseous cycles
Ans. (a)
23. The leguminous plants are important in agriculture because
(a) they need very little water to grow
(b) they are disease resistant
(c) they help in nitrogen economy of the plants
(d) six crops of leguminous plants are harvested in a year
Ans. (c)
24. The denitrification means
(a) reduction of NO2 to ammonia by bacteria in the soil
(b) conversion of ammonia to amino acids
(c) conversion of ammonia and nitrates to gaseous nitrogen
(d) oxidation of ammonia titrate
Ans. (c)
25. Which of the following contribute to the carbon cycle?
(a) Photosynthesis
(b) Respiration
(c) Fossil fuel combustion
(d) A1l of these
Ans. (d)
Solved Multiple Choice Questions in Botany
Free Multiple Choice Botany For AIIMS PMT
1. True xerophytes have
(a) lower rate of transpiration than mesophytes
(b) transpiration rate equal to mesophytes
(c) transpiration rate higher than mesophytes
(d) no transpiration
Ans. (a)
2. Plants growing in extremely cold soils are
(a) halophytes
(b) psammophytes
(c) oxylophytes
(d) psychrophytes
Ans. (d)
3. Xerophytes have long roots
(a) due to light
(b) to draw water from deep water beds
(c) to give mechanical support
(d) none of the above
Ans. (b)
4. The orchid plants, which are found growing on the trees, are
(a) parasites
(b) epiphytes
(c) saprophytes
(d) lithophytes
Ans. (b)
5. In submerged hydrophytes functional stomata are found
(a) on lower surface of leaf
(b) on both the surface of leaf
(c) no where on the plant
(d) on upper surface of leaf
Ans. (c)
6. What is the relationship between water-fern(Azolla) and nitrogen-fixing
cyanobacteria(Anabaena) called?
(a) Symbiotic
(b) Predation
(c) Parasitic
(d) Epiphytic
Ans. (a)
7. When animals feed on other dead animals, which had died naturally or had been
killed by another animals, the relationship is termed as
(a) predation
(b) competition
(c) scavenging
(d) symbiosis
Ans. (c)
8. The first plants to reappear in a badly burned forest area will most probably be
(a) liverworts
(b) ferns
(c) grasses
(d) mosses
Ans. (b)
9. The transfer of energy from organism to organism in a natural community establishes
(a) food chains
(b) biological control
(c) natural barriers
(d) all the above
Ans. (a)
10. First link to any food chain is a green plant because
(a) fixed at one place
(b) they alone have the capacity to synthesise food
(c) they can eat every thing
(d) they respire
Ans. (b)
11. Which is a primary consumer?
(a) Scavenger
(b) Saprophyte
(c) Carnivore
(d) Herbivore
Ans. (d)
12. Trophic levels are formed by
(a) plants only
(b) animals only
(c) carnivores only
(d) organisms linked in food chain
Ans. (d)
13. Energy and nutrients enter a community by way of the
(a) producers
(b) consumers
(c) detrivores
(d) scavengers
Ans. (a)
14. The following groups of organisms represent different trophic levels. Which out of
these four has the greatest biomass?
(a) Herbivores
(b) Carnivores
(e) Autotrophs
(d) Decomposers
Ans. (c)
15. The food chain that starts from plants and goes from smaller to larger animals is
(a) predator food chain
(b) saprophytic food chain
(c) detritus food chain
(d) parasitic food chain
Ans. (a)
16. A crocodile had just eaten a lamb when a hawk saw the crocodile, attacked it and
consumed it.The hawk is in ecological terms
(a) a producer
(b) a primary consumer
(c) a secondary consumer
(d) tertiary consumer
Ans. (d)
17. Organisms of the same trophic level are
(a) deer and honey bee
(b) cheetah and wild bear
(c) snake and earthworm
(d) crow and cow
Ans. (a)
18. Driving force of ecosystem is
(a) carbohydrate in plants
(b) biomass
(c) solar energy
(d) producer
Ans. (c)
19. Which of the following is upright in all the ecosystems?
(a) Pyramid of number
(b) Pyramid of energy
(c) Pyramid of biomass
(d) All the above
Ans. (b)
20. In an aqueous environment microscopic animals and plants are collectively known as
(a) herbivores
(b) fauna and flora
(c) planktons
(d) symbionts
Ans. (c)
21. Which one of following word is related to Homo sapiens?
(a) Herbivore
(b) Carnivore
(c) Omnivore
(d) Autotroph
Ans. (c)
22. Biogeochemical cycles are also known as
(a) cycles of matter
(b) sedimentary cycles
(c) material cycling
(d) gaseous cycles
Ans. (a)
23. The leguminous plants are important in agriculture because
(a) they need very little water to grow
(b) they are disease resistant
(c) they help in nitrogen economy of the plants
(d) six crops of leguminous plants are harvested in a year
Ans. (c)
24. The denitrification means
(a) reduction of NO2 to ammonia by bacteria in the soil
(b) conversion of ammonia to amino acids
(c) conversion of ammonia and nitrates to gaseous nitrogen
(d) oxidation of ammonia titrate
Ans. (c)
25. Which of the following contribute to the carbon cycle?
(a) Photosynthesis
(b) Respiration
(c) Fossil fuel combustion
(d) A1l of these
Ans. (d)
Tuesday, June 14, 2011
Biology questions for exams
Biology questions for exams
Exam Questions Fully Solved - Biology
Biology Exams With Solutions
1. The main function of a plasma membrane is to
(a) prevent water from entering or leaving
(b) control what goes into and out of the cell
(c) act as a sieve, allowing only lipids to pass
(d) Move the cell from place to place
Ans. (b)
2. Who was the first to explain that cells divide and that all-new cells must come from preexisting cells?
(a) M. Schleiden
(b) T. Schwann
(c) Robert Hooke
(d) Rudolf Virchow
Ans. (d)
3. The first person to see a cell under the microscope was
(a) M. Schleiden
(b) T. Schwann
(c) Robert Hooke
(d) A.V. Leeuwenhoek
Ans. (c)
4. Prokaryotic cell is one, which does not have
(a) Proper nucleus
(b) Endoplasmic reticulum & mitochondria
(c) Proper nucleus and most of ce1organelles
(d) Cell wall
Ans. (c)
5. Which two organelles are thought to have originated from free-living prokaryotic cells?
(a) Mitochondria and ribosomes
(b) Chloroplast and nucleus
(c) Chloroplast and mitochondria
(d) Lysosomes and mitochondria
Ans. (c)
6. The cytoplasmic connections from cell to cell are known as
(a) Middle lamella
(b) Plasmodesmata
(c) Cell membrane system
(d) Endoplasmic reticulum
Ans. (b)
7. Ribosome was discovered by
(a) Porter
(b) Palade
(c) Muller
(d) Ochoa
Ans. (b)
8. Which one of the following does not have DNA?
(a) Nucleus
(b) Mitochondria
(c) Chloroplast
(d) Ribosomes
Ans. (d)
9. The smallest organelles in a cell are
(a) Lysosomes
(b) Spherosomes
(c) Peroxysomes
(d) Ribosomes
Ans. (d)
10. Endoplasmic reticulum was discovered by
(a) Porter and Kallmann
(b) Altmann
(c) Robertson
(d) Hofmeister
Ans. (a)
11. Proteins that are to be used outside the cell are synthesized
(a) in the mitochondria
(b) on the rough endoplasmic reticulum
(c) on the smooth endoplasmic reticulum
(d) on free ribosomes
Ans. (b)
12. Golgi apparatus is absent in
(a) Liver cells
(b) Higher plants
(c) Blue green algae
(d) Yeast
Ans. (c)
13. Which one of the following organelles is located near the nucleus contains a collection of flattened membrane bounded cisternae?
(a) Nucleolus
(b) Centriole
(c) Golgi apparatus
(d) Mitochondrion
Ans. (c)
14. What “buds off’ of the Golgi complex?
(a) Nuclei
(b) Cytoskeleton
(c) Ribosomes
(d) Vesicles
Ans. (d)
15. Major function of Golgi body is
(a) Secretion
(b) Regulation of cell temperature
(c) Active transport
(d) Transportation
Ans. (a)
16. Mitochondria were first observed by
(a) Robert Brown
(b) Altmann
(c) Robert Hooker
(d) T. Svedberg
Ans. (b)
17. The inner membrane of mitochondrion is usually highly convoluted forming a series of enfolding known as
(a) Thylakoids
(b) Grana
(c) Cristae
(d) Lamellae
Ans. (c)
18. The enzymes for Krebs cycle in mitochondria are located in
(a) In perimitochondrial space
(b) On inner membrane
(c) In mitochondrial matrix
(d) On the outer membrane
Ans. (c)
19. Cell organelle, which has electron transport system, is
(a) Centriole
(b) Endoplasmic reticulum
(c) Mitochondria
(d) Nucleolus
Ans. (c)
20. Mitochondria and chloroplast are believed to be bacterial endosymbionts of cells because
(a) Their membranes resemble those of bacteria
(b) They do not arise do novo
(c) They have their own nucleic acids
(d) They have all the above attributes
Ans. (d)
21. Autonomic genome system is present in
(a) Mitochondria and ribosomes
(b) Mitochondria and chloroplast
(c) Ribosomes and chloroplast
(d) Golgi body and mitochondria
Ans. (b)
22. Besides leucoplast, starch grain can develop in
(a) Mitochondria
(b) Chloroplast
(c) Lysosome
(d) Chromoplast
Ans. (b)
23. Green pigments capable of capturing the energy of sunlight are located within the
(a) Endoplasmic reticulum
(b) Chloroplasts
(c) Cell wall
(d) Ribosomes
Ans. (b)
24. The plastids that give fruits and flowers their orange and yellow colours are the
(a) Chromoplast
(b) Protoplasts
(c) Chloroplasts
(d) Leucoplasts
Ans. (a)
25. Lysosomes are known as “suicidal bags” because of
(a) Catalytic activity
(b) Hydrolytic activity
(c) Parasitic activity
(d) Saprophytic activity
Ans. (b)
Exam Questions Fully Solved - Biology
Biology Exams With Solutions
1. The main function of a plasma membrane is to
(a) prevent water from entering or leaving
(b) control what goes into and out of the cell
(c) act as a sieve, allowing only lipids to pass
(d) Move the cell from place to place
Ans. (b)
2. Who was the first to explain that cells divide and that all-new cells must come from preexisting cells?
(a) M. Schleiden
(b) T. Schwann
(c) Robert Hooke
(d) Rudolf Virchow
Ans. (d)
3. The first person to see a cell under the microscope was
(a) M. Schleiden
(b) T. Schwann
(c) Robert Hooke
(d) A.V. Leeuwenhoek
Ans. (c)
4. Prokaryotic cell is one, which does not have
(a) Proper nucleus
(b) Endoplasmic reticulum & mitochondria
(c) Proper nucleus and most of ce1organelles
(d) Cell wall
Ans. (c)
5. Which two organelles are thought to have originated from free-living prokaryotic cells?
(a) Mitochondria and ribosomes
(b) Chloroplast and nucleus
(c) Chloroplast and mitochondria
(d) Lysosomes and mitochondria
Ans. (c)
6. The cytoplasmic connections from cell to cell are known as
(a) Middle lamella
(b) Plasmodesmata
(c) Cell membrane system
(d) Endoplasmic reticulum
Ans. (b)
7. Ribosome was discovered by
(a) Porter
(b) Palade
(c) Muller
(d) Ochoa
Ans. (b)
8. Which one of the following does not have DNA?
(a) Nucleus
(b) Mitochondria
(c) Chloroplast
(d) Ribosomes
Ans. (d)
9. The smallest organelles in a cell are
(a) Lysosomes
(b) Spherosomes
(c) Peroxysomes
(d) Ribosomes
Ans. (d)
10. Endoplasmic reticulum was discovered by
(a) Porter and Kallmann
(b) Altmann
(c) Robertson
(d) Hofmeister
Ans. (a)
11. Proteins that are to be used outside the cell are synthesized
(a) in the mitochondria
(b) on the rough endoplasmic reticulum
(c) on the smooth endoplasmic reticulum
(d) on free ribosomes
Ans. (b)
12. Golgi apparatus is absent in
(a) Liver cells
(b) Higher plants
(c) Blue green algae
(d) Yeast
Ans. (c)
13. Which one of the following organelles is located near the nucleus contains a collection of flattened membrane bounded cisternae?
(a) Nucleolus
(b) Centriole
(c) Golgi apparatus
(d) Mitochondrion
Ans. (c)
14. What “buds off’ of the Golgi complex?
(a) Nuclei
(b) Cytoskeleton
(c) Ribosomes
(d) Vesicles
Ans. (d)
15. Major function of Golgi body is
(a) Secretion
(b) Regulation of cell temperature
(c) Active transport
(d) Transportation
Ans. (a)
16. Mitochondria were first observed by
(a) Robert Brown
(b) Altmann
(c) Robert Hooker
(d) T. Svedberg
Ans. (b)
17. The inner membrane of mitochondrion is usually highly convoluted forming a series of enfolding known as
(a) Thylakoids
(b) Grana
(c) Cristae
(d) Lamellae
Ans. (c)
18. The enzymes for Krebs cycle in mitochondria are located in
(a) In perimitochondrial space
(b) On inner membrane
(c) In mitochondrial matrix
(d) On the outer membrane
Ans. (c)
19. Cell organelle, which has electron transport system, is
(a) Centriole
(b) Endoplasmic reticulum
(c) Mitochondria
(d) Nucleolus
Ans. (c)
20. Mitochondria and chloroplast are believed to be bacterial endosymbionts of cells because
(a) Their membranes resemble those of bacteria
(b) They do not arise do novo
(c) They have their own nucleic acids
(d) They have all the above attributes
Ans. (d)
21. Autonomic genome system is present in
(a) Mitochondria and ribosomes
(b) Mitochondria and chloroplast
(c) Ribosomes and chloroplast
(d) Golgi body and mitochondria
Ans. (b)
22. Besides leucoplast, starch grain can develop in
(a) Mitochondria
(b) Chloroplast
(c) Lysosome
(d) Chromoplast
Ans. (b)
23. Green pigments capable of capturing the energy of sunlight are located within the
(a) Endoplasmic reticulum
(b) Chloroplasts
(c) Cell wall
(d) Ribosomes
Ans. (b)
24. The plastids that give fruits and flowers their orange and yellow colours are the
(a) Chromoplast
(b) Protoplasts
(c) Chloroplasts
(d) Leucoplasts
Ans. (a)
25. Lysosomes are known as “suicidal bags” because of
(a) Catalytic activity
(b) Hydrolytic activity
(c) Parasitic activity
(d) Saprophytic activity
Ans. (b)
Friday, June 3, 2011
PMT Sample questions
PMT Sample questions
PMT Sample Paper:Botany
Free Pmt Online Practice Test
1. Green-house gases include:
(a) CO2, CFC, CH4 and NO2
(b) CO2, O2, N2, NO2 and NH3
(c) CH4, N2, CO2 and NH3
(d) CFC, CO2, NH3 and N2
Ans. (a)
2. Best source of renewable energy is:
(a) cattle
(b) petroleum
(c) coal
(d) trees
Ans.(d)
3. Histone protein synthesis occurs during:
(a) G1-phase
(b) G2-phase
d) S-phase
(d) Prophase
Ans. (c)
4. Multicellular fragment of a blue-green alga capable of growth into new plant is:
(a) hormocyst
(b) trichome
(c) trichogyne
(d) hormogonium
Ans. (d)
5. Karyokinesis differs from cytokinesis as it involves division of:
(a) cytoplasm
(b) nucleus
(c) both (a) and (b)
(d) cell
Ans. (b)
6. Which of the following cannot be grown on artificial culture medium?
(a) Escherichia coil
(b) TMV
(c) Aspergillus
(d) Yeast
Ans. (b)
7. Common features between lenticels and hydathodes are:
(a) allow exchange of gases
(b) always remain closed
(c) there is no regulation of their opening and closing
(d) they occur on the same organ of the plant
Ans. (c)
8. Which one of the following is a saprophytic bryophyte?
(a) Riccia fluitans
(b) Buxbaunia aphylla
(c) Funaria hygrometrica
(d) Sphagnum
Ans.(b)
9. The waxy substance associated with the walls of cork or the wall of cork cells are mostly impregnated with:
(a) cutin
(b) suberin
(c) lignin
(d) hemicellulose
Ans. (b)
10. Coenocytic mycelium occurs in:
(a) deuteromycetes
(b) ascomycetes
(c) phycomycetes
(d) basidiomycetes
Ans. (c)
11. Lignin occurs in the cell wall of:
(a) phloem
(b) cork
(c) woody tissue/xylem cells
(d) parenchyma/epidermal cells
Ans. (c)
12. External water is not required for fertilization in:
(a) fern/Selaginella
(b) moss/Riccia
(c) Ulothrix
(d) gymnosperms/maize
Ans. (d)
13. Night jasmine, the shrub that emits fragrance during night is:
(a) Cestrum nocturnum
(b) Solanum surattense
(C) Brunfelsia hopaena
(d) Datura strainonium
Ans. (a)
14. Which one has maximum biomass?
(a) Pond ecosystem
(b) Lake ecosystem
(c) Grassland ecosystem
(d) Forest ecosystem
Ans. (d)
15. Pulses are obtained from:
(a) Fabaceae
(b) Asteraceae
(c) Poaceae
(d) Solaneceae
Ans. (a)
16. The wing of Pinus seed is derived from:
(a) testa
(b) testa and tegman
(c) surface of ovuliferous scales
(d) all of the above
Ans.(c)
17. Enzyme used in joining DNA fragments is:
(a) DNA ligase
(b) DNA polymerase
(c) DNA gyrase
(d) Topoisomerase
Ans. (a)
18. Amount of water a soil can hold against pull of gravity is called:
(a) field capacity
(b) gravitational water
(c) storage water
(d) hygroscopic water
Ans.(a)
19. The leaves develop from:
(a) nodes
(b) intemodes
(c) epidermis
(d) endodermis
Ans. (a)
20. Ochreate stipules occur in the family:
(a) Cruciferae
(b) Solanaceae
(c) Compositae
(d) Polygonaceae
Ans. (d)
21. Double fertilization and triple fusion were discovered by:
(a) Hofmeister
(b) Nawaschin and Guignard
(c) Leeuwenhoek
(d) Strasburger
Ans.(b)
22. Hexaploid or modem wheat developed through:
(a) hybridomas
(b) chromosome doubling
(c) hybridization
(d) hybridization and chromosome doubling
Ans.(d)
23. Pneumatophores are useful in:
(a) respiration
(b) transpiration
(c) guttation
(d) protein synthesis
Ans. (a)
24. Lever mechanism or turn-pipe mechanism of pollination is found in:
(a) Antirrhinum
(b) Ficus
(c) Wheat
(d) Salvia
Ans.(d)
25. Mendel did not propose:
(a) dominence
(b) incomplete dominence
(c) segregation
(d) independent assortment
Ans.(b)
PMT Sample Paper:Botany
Free Pmt Online Practice Test
1. Green-house gases include:
(a) CO2, CFC, CH4 and NO2
(b) CO2, O2, N2, NO2 and NH3
(c) CH4, N2, CO2 and NH3
(d) CFC, CO2, NH3 and N2
Ans. (a)
2. Best source of renewable energy is:
(a) cattle
(b) petroleum
(c) coal
(d) trees
Ans.(d)
3. Histone protein synthesis occurs during:
(a) G1-phase
(b) G2-phase
d) S-phase
(d) Prophase
Ans. (c)
4. Multicellular fragment of a blue-green alga capable of growth into new plant is:
(a) hormocyst
(b) trichome
(c) trichogyne
(d) hormogonium
Ans. (d)
5. Karyokinesis differs from cytokinesis as it involves division of:
(a) cytoplasm
(b) nucleus
(c) both (a) and (b)
(d) cell
Ans. (b)
6. Which of the following cannot be grown on artificial culture medium?
(a) Escherichia coil
(b) TMV
(c) Aspergillus
(d) Yeast
Ans. (b)
7. Common features between lenticels and hydathodes are:
(a) allow exchange of gases
(b) always remain closed
(c) there is no regulation of their opening and closing
(d) they occur on the same organ of the plant
Ans. (c)
8. Which one of the following is a saprophytic bryophyte?
(a) Riccia fluitans
(b) Buxbaunia aphylla
(c) Funaria hygrometrica
(d) Sphagnum
Ans.(b)
9. The waxy substance associated with the walls of cork or the wall of cork cells are mostly impregnated with:
(a) cutin
(b) suberin
(c) lignin
(d) hemicellulose
Ans. (b)
10. Coenocytic mycelium occurs in:
(a) deuteromycetes
(b) ascomycetes
(c) phycomycetes
(d) basidiomycetes
Ans. (c)
11. Lignin occurs in the cell wall of:
(a) phloem
(b) cork
(c) woody tissue/xylem cells
(d) parenchyma/epidermal cells
Ans. (c)
12. External water is not required for fertilization in:
(a) fern/Selaginella
(b) moss/Riccia
(c) Ulothrix
(d) gymnosperms/maize
Ans. (d)
13. Night jasmine, the shrub that emits fragrance during night is:
(a) Cestrum nocturnum
(b) Solanum surattense
(C) Brunfelsia hopaena
(d) Datura strainonium
Ans. (a)
14. Which one has maximum biomass?
(a) Pond ecosystem
(b) Lake ecosystem
(c) Grassland ecosystem
(d) Forest ecosystem
Ans. (d)
15. Pulses are obtained from:
(a) Fabaceae
(b) Asteraceae
(c) Poaceae
(d) Solaneceae
Ans. (a)
16. The wing of Pinus seed is derived from:
(a) testa
(b) testa and tegman
(c) surface of ovuliferous scales
(d) all of the above
Ans.(c)
17. Enzyme used in joining DNA fragments is:
(a) DNA ligase
(b) DNA polymerase
(c) DNA gyrase
(d) Topoisomerase
Ans. (a)
18. Amount of water a soil can hold against pull of gravity is called:
(a) field capacity
(b) gravitational water
(c) storage water
(d) hygroscopic water
Ans.(a)
19. The leaves develop from:
(a) nodes
(b) intemodes
(c) epidermis
(d) endodermis
Ans. (a)
20. Ochreate stipules occur in the family:
(a) Cruciferae
(b) Solanaceae
(c) Compositae
(d) Polygonaceae
Ans. (d)
21. Double fertilization and triple fusion were discovered by:
(a) Hofmeister
(b) Nawaschin and Guignard
(c) Leeuwenhoek
(d) Strasburger
Ans.(b)
22. Hexaploid or modem wheat developed through:
(a) hybridomas
(b) chromosome doubling
(c) hybridization
(d) hybridization and chromosome doubling
Ans.(d)
23. Pneumatophores are useful in:
(a) respiration
(b) transpiration
(c) guttation
(d) protein synthesis
Ans. (a)
24. Lever mechanism or turn-pipe mechanism of pollination is found in:
(a) Antirrhinum
(b) Ficus
(c) Wheat
(d) Salvia
Ans.(d)
25. Mendel did not propose:
(a) dominence
(b) incomplete dominence
(c) segregation
(d) independent assortment
Ans.(b)
Botany Multiple Choice Questions With Answers
Botany Multiple Choice Questions With Answers
Solved objective questions botany
multiple choice questions answers for botany for pre medical Exams
1. Syconus fruit develops from:
(a) catkin
(b) verticillaster
(c) hypanthodium
(d) cyathium
Ans. (c)
2. The minimum time interval required between application of stimulus and production of response is
(a) presentation time
(b) relaxation time
(c) conversion time
(d) reaction time
Ans. (d)
3. Father of Indian green revolution is:
(a) B.P. Pal
(b) Norman Borlaug
(c) M.S. Swaminathan
(d) K.C. Mehta
Ans. (c)
4. Chromosome end is called
(a) telomere
(b) centromere
(c) satellite
(d) maramere
Ans. (a)
5. A medicinal plant is:
(a) Cryptostegia grandiflora
(b) Coffea arabica
(c) Rauwolffia serpentina
(d) Brassica oleracea
Ans. (c)
6. Polyribosomes are aggregates of:
(a) ribosomes and r-RNA
(b) only r-RNA
(c) peroxisomes
(d) several ribosomes held together by string of m-RNA
Ans. (d)
7. Number of ATP molecules produced by each NADPH is:
(a) 3
(b) 2
(c) 1
(d) 5
Ans. (a)
8. The term protoplasm was coined by:
(a) Robert Hooke
(b) Dujardin
(c) Robert Brown
(d) Purkinje
Ans. (d)
9. Final electron acceptor in respiration is
(a) hydrogen
(b) oxygen
(c) cytochrome
(d) dehydrogenase
Ans. (b)
10. An algae rich in proteins is:
(a) Chlorella
(b) Oscillatoria
(C) Ulothrix
(d) Spirogyra
Ans. (a)
11. The loading of phloem during translocation means:
(a) elongation of phloem cells
(b) separation of phloem parenchyma
(c) strengthening of phloem fibers
(d) pouring of sugars into phloem
Ans. (d)
12. Both heterospory and circinate ptyxis occur in:
(a) Dryopteris
(b) Pinus
(c) Cycas
(d) Funaria
Ans. (c)
13. In C3 plants first stable product photosynthesis during dark reaction is:
(a) PGA
(b) Pyruvic acid
(c) RuBP
(d) Oxalo acetic acid
Ans. (a)
14. Plant hormone causing abscission of leaves, senescence, bud dormancy and inhibition of cell division is
(a) IAA
(b) ethylene
(c) cytokinins
(d) ABA
Ans. (d)
15. Chlorosis in plants occurs due to:
(a) high sunlight intensity
(b) low sunlight intensity
(c) absorption of yellow pigment from the soil
(d) deficiency of Mg and Fe in the soil
Ans. (d)
16. Vascular cryptogams are:
(a) Bryophytes
(b) Spermatophytes
(c) Pteridophyte
(d) None of these
Ans. (c)
17. Gasohol is:
(a) 20 % ethanol + 80 % petrol
(b) 20 % ethanol + 70% petrol + 10% kerosene
(c) 10% ethanol + 80% petrol+ 10% kerosene
(d) 10 % ethanol + 90 % petrol
Ans. (a)
18. Phytochrome is involved in:
(a) phototropism
(b) photorespiration
(c) photoperiodism
(d) geotropism
Ans. (c)
19. Which one of the following essential elements can land plants normally obtain directly from air?
(a) Hydrogen
(c) Nitrogen
(b) Carbon
(d) Phosphorus
Ans. (b)
20. Main function of lenticel is:
(a) transpiration
(b) guttation
(c) bleeding
(d) gaseous exchange
Ans. (d)
21. In a-helix secondary structure, hydrogen bonds lie between amide group of one amino acid and carbonyl group of:
(a) 2nd amino acid
(b) 3rd amino acid
(c) fourth amino acid
(d) fifth amino acid
Ans. (c)
22. Pomato is somatic hybrid between:
(a) poppy and potato
(b) potato and tomato
(c) poppy and tamarind
(d) poppy and tomato
Ans. (b)
23. Which of the following is used to determine the rate of transpiration in plants?
(a) Porometer/hygrometer
(b) Potometers
(c) Auxanometer
(d) Tensiometer/barometer
Ans. (b)
24. The protein part of enzyme is:
(a) prosthatic group
(b) apoenzyme
(c) holoenzyme
(d) zymogen
Ans. (b)
25. Pesticides comprise
(a) herbicides and insecticides
(b) insecticides
(c) insecticides, nematecides and rodenticides
(d) fungicides, herbicides, insecticides, nematecides and rodenticides
Ans. (d)
Solved objective questions botany
multiple choice questions answers for botany for pre medical Exams
1. Syconus fruit develops from:
(a) catkin
(b) verticillaster
(c) hypanthodium
(d) cyathium
Ans. (c)
2. The minimum time interval required between application of stimulus and production of response is
(a) presentation time
(b) relaxation time
(c) conversion time
(d) reaction time
Ans. (d)
3. Father of Indian green revolution is:
(a) B.P. Pal
(b) Norman Borlaug
(c) M.S. Swaminathan
(d) K.C. Mehta
Ans. (c)
4. Chromosome end is called
(a) telomere
(b) centromere
(c) satellite
(d) maramere
Ans. (a)
5. A medicinal plant is:
(a) Cryptostegia grandiflora
(b) Coffea arabica
(c) Rauwolffia serpentina
(d) Brassica oleracea
Ans. (c)
6. Polyribosomes are aggregates of:
(a) ribosomes and r-RNA
(b) only r-RNA
(c) peroxisomes
(d) several ribosomes held together by string of m-RNA
Ans. (d)
7. Number of ATP molecules produced by each NADPH is:
(a) 3
(b) 2
(c) 1
(d) 5
Ans. (a)
8. The term protoplasm was coined by:
(a) Robert Hooke
(b) Dujardin
(c) Robert Brown
(d) Purkinje
Ans. (d)
9. Final electron acceptor in respiration is
(a) hydrogen
(b) oxygen
(c) cytochrome
(d) dehydrogenase
Ans. (b)
10. An algae rich in proteins is:
(a) Chlorella
(b) Oscillatoria
(C) Ulothrix
(d) Spirogyra
Ans. (a)
11. The loading of phloem during translocation means:
(a) elongation of phloem cells
(b) separation of phloem parenchyma
(c) strengthening of phloem fibers
(d) pouring of sugars into phloem
Ans. (d)
12. Both heterospory and circinate ptyxis occur in:
(a) Dryopteris
(b) Pinus
(c) Cycas
(d) Funaria
Ans. (c)
13. In C3 plants first stable product photosynthesis during dark reaction is:
(a) PGA
(b) Pyruvic acid
(c) RuBP
(d) Oxalo acetic acid
Ans. (a)
14. Plant hormone causing abscission of leaves, senescence, bud dormancy and inhibition of cell division is
(a) IAA
(b) ethylene
(c) cytokinins
(d) ABA
Ans. (d)
15. Chlorosis in plants occurs due to:
(a) high sunlight intensity
(b) low sunlight intensity
(c) absorption of yellow pigment from the soil
(d) deficiency of Mg and Fe in the soil
Ans. (d)
16. Vascular cryptogams are:
(a) Bryophytes
(b) Spermatophytes
(c) Pteridophyte
(d) None of these
Ans. (c)
17. Gasohol is:
(a) 20 % ethanol + 80 % petrol
(b) 20 % ethanol + 70% petrol + 10% kerosene
(c) 10% ethanol + 80% petrol+ 10% kerosene
(d) 10 % ethanol + 90 % petrol
Ans. (a)
18. Phytochrome is involved in:
(a) phototropism
(b) photorespiration
(c) photoperiodism
(d) geotropism
Ans. (c)
19. Which one of the following essential elements can land plants normally obtain directly from air?
(a) Hydrogen
(c) Nitrogen
(b) Carbon
(d) Phosphorus
Ans. (b)
20. Main function of lenticel is:
(a) transpiration
(b) guttation
(c) bleeding
(d) gaseous exchange
Ans. (d)
21. In a-helix secondary structure, hydrogen bonds lie between amide group of one amino acid and carbonyl group of:
(a) 2nd amino acid
(b) 3rd amino acid
(c) fourth amino acid
(d) fifth amino acid
Ans. (c)
22. Pomato is somatic hybrid between:
(a) poppy and potato
(b) potato and tomato
(c) poppy and tamarind
(d) poppy and tomato
Ans. (b)
23. Which of the following is used to determine the rate of transpiration in plants?
(a) Porometer/hygrometer
(b) Potometers
(c) Auxanometer
(d) Tensiometer/barometer
Ans. (b)
24. The protein part of enzyme is:
(a) prosthatic group
(b) apoenzyme
(c) holoenzyme
(d) zymogen
Ans. (b)
25. Pesticides comprise
(a) herbicides and insecticides
(b) insecticides
(c) insecticides, nematecides and rodenticides
(d) fungicides, herbicides, insecticides, nematecides and rodenticides
Ans. (d)
Zoology objective practice test
Zoology objective practice test
Zoology Objective Test Online Practice Test
Free Online Test Objective Zoology Quiz
1. Hopanoids are present in membrane of:
(a) all eukaryotes
(b) algae
(c) bacteria
(d) fungi
Ans. (c)
2. Sarcolemma is a membrane found over in:
(a) nerve fibre
(b) cardiac muscle
(c) skeleton muscle fibre
(d) heart
Ans. (c)
3. Which of the following statement is right?
(a) Prophase-I —> leptotene —> pechytene —> zygotene —>diplotene —> diakinesis
(b) Prophase-I —> leptotene —> zygotene —> diplotene —> pechytene —> diakinesis
(c) Prophase-I —> leptotene —> zygotene —> pechytene —> diplotene —> diakinesis
(d) Prophase-I —> leptotene —> diplotene —>zygotene —> pachytene —>diakinesis
Ans. (c)
4. Setae or chaetae are absent on:
(a) peristomium
(b) pygidium
(c) clitellum
(d) all of these
Ans. (d)
5. —10 sequence on promoter has 6 nucleotides which have a specific sequence. Which is?
(a) TATATA
(b) TAATAT
(c) TATAAT
(d) TATTAT
Ans. (c)
6. Na+ - K+ ATPase protein required how much ATP molecules for import of two K within the cell?
(a) 4
(b) 3
(c) 2
(d) 1
Ans. (d)
7. A protein, which is analogous to eukaryotic histones, present in some species of bacteria:
(a) UH protein
(b) H protein
(c) U protein
(d) RU protein
Ans. (d)
8. The pairing of homologous chromosomes during zygotene is called as
(a) synapse
(b) terminalisation
(c) synopsis
(d) crossing over
Ans. (c)
9. Which of the following disease was the first human disease found to be caused by a virus:
(a) smallpox
(b) colorado tick fever
(c) yellow fever
(d) rubella
Ans. (c)
10. Which of the following muscle gets into fatigue very early?
(a) Skeletal muscle
(b) Cardiac muscle
(c) Smoth muscle
(d) All of these
Ans. (a)
11. Who proposed the name m-RNA for the first time?
(a) Lerman
(b) Jacob and Monod
(c) Kelley
(d) Spirin
Ans. (b)
12. ADH and oxytocin are produced by:
(a) posterior pituitary gland
(b) anterior pituitary gland
(c) thyroid gland
(d) neurosecretory cell bodies
Ans. (d)
13. Which type of inversion include centromere portion of a chromosome?
(a) Paracentric
(b) Pericentric
(c) Both (a) and (b)
(d) None of these
Ans. (b)
14. The temperature ranges at which enzymes are maximum functional:
(a) 40— 45°C
(b) 15— 20°C
(c) 30— 45°C
(d) 20— 30°C
Ans. (c)
15. Which one of the following contains the largest quantity of extracellular material?
(a) Striated muscle
(b) Areolar tissue
(c) Stratified epithelium
(d) Myelinated nerve fibres
Ans. (b)
16. The movement of chloride ions into erythrocytes from plasma to maintain osmotic balance during transport of gases is known as:
(a) chlorination
(b) Hamburger phenomenon
(c) bicarbonate shift
(d) CO2 transport
Ans. (b)
17. Which of the following is not significance of mitosis ?
(a) It helps the cell in maintaining proper size
(b) It does not help in the maintenance of the equilibrium in the amount of DNA and RNA in the cell
(c) The gonads and sex cells depend on the mitosis for the increase in their number
(d) The old decaying and dead cells of body are replaced by the help of mitosis
Ans. (b)
18. Suspension of killed or attenuated pathogenic micro-organisms on inoculation if stimulate the formation of antibodies, it is known as:
(a) vaccine
(b) antibiotic
(c) sera
(d) antitoxins
Ans. (a)
19. In man sperms move after ejaculation at a rate of nearly:
(a) 2 to 4 mm/minute
(b) 2 to 4 feet/minute
(c) 2 to 4 inches/minute
(d) 2 to 4 cm/minute
Ans. (a)
20. Which of the following theory explain structure of protoplasm?
(a) Surface tension theory
(b) Colloidal theory
(c) Sol-gel theory
(d) Viscosity theory
Ans. (b)
21. Main difference between active and passive transport across cell membrane is that:
(a) active transport occurs more rapidly tha3l passive
(b) passive transport is non-selective
(c) passive transport is confined to anions and cations
(d) passive transport requires a concentration gradient across the membrane, whereas active transport requires metabolic energy
Ans. (d)
¬¬¬¬22. Ageing of an animal .body is associated with deterioration in its
(a) connective tissue
(b) glandular tissue
(c) epithelial tissue
(d) both (b) and (a)
Ans. (a)
23. Which of the following factor controls the human population density?
(a) Industry
(b) Climate
(c) Communication
(d) Natural resources
Ans. (b)
24. Christmas disease is another name for:
(a) haemophilia-B
(b) hepatitis-B
(c) Down’s syndrome
(d) sleeping sickness
Ans. (a)
25. Taenia solium derives it’s energy from the breakdown of:
(a) nucleic acids
(b) amino acids
(c) glycogen
(d) glycerol
Ans. (c)
Zoology Objective Test Online Practice Test
Free Online Test Objective Zoology Quiz
1. Hopanoids are present in membrane of:
(a) all eukaryotes
(b) algae
(c) bacteria
(d) fungi
Ans. (c)
2. Sarcolemma is a membrane found over in:
(a) nerve fibre
(b) cardiac muscle
(c) skeleton muscle fibre
(d) heart
Ans. (c)
3. Which of the following statement is right?
(a) Prophase-I —> leptotene —> pechytene —> zygotene —>diplotene —> diakinesis
(b) Prophase-I —> leptotene —> zygotene —> diplotene —> pechytene —> diakinesis
(c) Prophase-I —> leptotene —> zygotene —> pechytene —> diplotene —> diakinesis
(d) Prophase-I —> leptotene —> diplotene —>zygotene —> pachytene —>diakinesis
Ans. (c)
4. Setae or chaetae are absent on:
(a) peristomium
(b) pygidium
(c) clitellum
(d) all of these
Ans. (d)
5. —10 sequence on promoter has 6 nucleotides which have a specific sequence. Which is?
(a) TATATA
(b) TAATAT
(c) TATAAT
(d) TATTAT
Ans. (c)
6. Na+ - K+ ATPase protein required how much ATP molecules for import of two K within the cell?
(a) 4
(b) 3
(c) 2
(d) 1
Ans. (d)
7. A protein, which is analogous to eukaryotic histones, present in some species of bacteria:
(a) UH protein
(b) H protein
(c) U protein
(d) RU protein
Ans. (d)
8. The pairing of homologous chromosomes during zygotene is called as
(a) synapse
(b) terminalisation
(c) synopsis
(d) crossing over
Ans. (c)
9. Which of the following disease was the first human disease found to be caused by a virus:
(a) smallpox
(b) colorado tick fever
(c) yellow fever
(d) rubella
Ans. (c)
10. Which of the following muscle gets into fatigue very early?
(a) Skeletal muscle
(b) Cardiac muscle
(c) Smoth muscle
(d) All of these
Ans. (a)
11. Who proposed the name m-RNA for the first time?
(a) Lerman
(b) Jacob and Monod
(c) Kelley
(d) Spirin
Ans. (b)
12. ADH and oxytocin are produced by:
(a) posterior pituitary gland
(b) anterior pituitary gland
(c) thyroid gland
(d) neurosecretory cell bodies
Ans. (d)
13. Which type of inversion include centromere portion of a chromosome?
(a) Paracentric
(b) Pericentric
(c) Both (a) and (b)
(d) None of these
Ans. (b)
14. The temperature ranges at which enzymes are maximum functional:
(a) 40— 45°C
(b) 15— 20°C
(c) 30— 45°C
(d) 20— 30°C
Ans. (c)
15. Which one of the following contains the largest quantity of extracellular material?
(a) Striated muscle
(b) Areolar tissue
(c) Stratified epithelium
(d) Myelinated nerve fibres
Ans. (b)
16. The movement of chloride ions into erythrocytes from plasma to maintain osmotic balance during transport of gases is known as:
(a) chlorination
(b) Hamburger phenomenon
(c) bicarbonate shift
(d) CO2 transport
Ans. (b)
17. Which of the following is not significance of mitosis ?
(a) It helps the cell in maintaining proper size
(b) It does not help in the maintenance of the equilibrium in the amount of DNA and RNA in the cell
(c) The gonads and sex cells depend on the mitosis for the increase in their number
(d) The old decaying and dead cells of body are replaced by the help of mitosis
Ans. (b)
18. Suspension of killed or attenuated pathogenic micro-organisms on inoculation if stimulate the formation of antibodies, it is known as:
(a) vaccine
(b) antibiotic
(c) sera
(d) antitoxins
Ans. (a)
19. In man sperms move after ejaculation at a rate of nearly:
(a) 2 to 4 mm/minute
(b) 2 to 4 feet/minute
(c) 2 to 4 inches/minute
(d) 2 to 4 cm/minute
Ans. (a)
20. Which of the following theory explain structure of protoplasm?
(a) Surface tension theory
(b) Colloidal theory
(c) Sol-gel theory
(d) Viscosity theory
Ans. (b)
21. Main difference between active and passive transport across cell membrane is that:
(a) active transport occurs more rapidly tha3l passive
(b) passive transport is non-selective
(c) passive transport is confined to anions and cations
(d) passive transport requires a concentration gradient across the membrane, whereas active transport requires metabolic energy
Ans. (d)
¬¬¬¬22. Ageing of an animal .body is associated with deterioration in its
(a) connective tissue
(b) glandular tissue
(c) epithelial tissue
(d) both (b) and (a)
Ans. (a)
23. Which of the following factor controls the human population density?
(a) Industry
(b) Climate
(c) Communication
(d) Natural resources
Ans. (b)
24. Christmas disease is another name for:
(a) haemophilia-B
(b) hepatitis-B
(c) Down’s syndrome
(d) sleeping sickness
Ans. (a)
25. Taenia solium derives it’s energy from the breakdown of:
(a) nucleic acids
(b) amino acids
(c) glycogen
(d) glycerol
Ans. (c)
Wednesday, June 1, 2011
Solved Biology Sample Test For KVS PGT TGT Jobs
Solved Biology Sample Test For KVS PGT TGT Jobs
BIOLOGY SAMPLE QUESTIONS FOR PGT TGT
tgt sample paper :Biology
1. Cell theory was propounded by
(a) Schleiden and Schwann
(b) Watson and Crick
(c) Mendel and Morgan
(d) Wallace and Darwin
Ans. (a)
2. The figures of cork cells as seen by Robert Hooke were published in his book
(a) Origin of Species
(b) Plant Kingdom
(c) Genra Plantarum
(d) Micrographia
Ans. (d)
3. The term ‘protoplasm’ was given by
(a) Purkinje
(b) Dujardin
(c) Brown
(d) Fischer
Ans. (a)
4. Who first coined the word “cell”?
(a) Aristotle
(b) Hooke
(c) Schwann
(d) Leeuwenhoek
Ans. (b)
5. Striking difference between a plant cell and an animal cell is due to the presence of
(a) Centrosome
(b) Plasma membrane
(c) Cell wall
(d) Chloroplast
Ans. (c)
6. Membranes occur in
(a) Cytoplasm, chloroplasts and mitochondria
(b) Cytoplasm, nuclei and starch grains
(c) Chromosomes, chloroplasts and starch grains
(d) Nuclei, chromosomes and mitochondria
Ans. (a)
7. Chemical nature of ribosomes is
(a) Beta galactosidase
(b) Proteins and lipids
(c) Glucose and sucrose
(d) Proteins and RNA
Ans. (d)
8. All are membrane bounded cell organelles except
(a) Mitochondria
(b) Spherosomes
(c) Ribosomes
(d) Lysosomes
Ans. (c)
9. The fine network of membranes distributed throughout the cytoplasm in a cell is
(a) golgi body
(b) mitochondria
(c) endoplasmic reticulum
(d) lysosomes
Ans. (c)
10. Smooth endoplasmic reticulum is well developed in the cells, which synthesise
(a) Steroids and lipids
(b) Carbohydrates
(c) Proteins
(d) All the above
Ans. (a)
11. If cells are broken up and sedimented by centrifugation, the new structure formed in one of the fractions is
(a) Lysosome
(b) Microsome
(c) Ribosome
(d) Centrosome
Ans. (b)
12. The Golgi complex plays a major role
(a) in digesting proteins and carbohydrates
(b) in trapping light quanta and transforming them into chemical energy
(c) in glycosidation of lipids and proteins to produce glycolipids and glycoproteins
(d) As energy transferring organelles
Ans. (c)
13. Besides giving out secretory vesicles the Golgi apparatus is also concerned with the formation of
(a) Lysosome
(b) Plastids
(c) Grana of chloroplast
(d) Cell plates after cell division in plants
Ans. (a)
14. Dictyosomes are
(a) Place of flagellar organelle
(b) Respiratory particle
(c) Golgi bodies
(d) Class of ribosomes
Ans. (c)
15. Cellulose and hemicellulose are the constituents of cell wall are synthesized by
(a) Microbodies
(b) Smooth endoplasmic reticulum
(c) Lysosome
(d) Golgi apparatus
Ans. (d)
16. Which organelle changes the chemical energy into utilizable energy?
(a) Lysosome
(b) Mitochondria
(c) Endoplasmic reticulum
(d) Microsome
Ans. (b)
17. Which of the following is NOT a non- protoplasmic cell inclusion?
(a) Cystolith
(b) Starch grain
(c) Raphide
(d) Mitochondrion
Ans. (d)
18. In which of the following parts of mitochondria succinic dehydrogenase enzyme and cytochrome oxidase is located?
(a) Inner membrane
(b) Outer membrane
(c) Perimitochondrial space
(d) Mitochondrial matrix
Ans. (a)
19. Mitochondria are found
(a) In all cells
(b) Only in plant cells
(c) Only in animal cells
(d) In all eukaryotic cells
Ans. (d)
20. The presence of DNA in mitochondria and chloroplast supports the hypothesis that
(a) Mitochondria and chloroplast both originated as independent free-living organisms
(b) Glycolysis occurs in both mitochondria and chloroplast
(c) Chloroplast and mitochondria undergo meiosis and mitosis independent of nucleus
(d) ATP is produced in chloroplast as well as mitochondria
Ans. (a)
21. If the leaf tissues are carefully fractionated, what part should be alive?
(a) Endoplasmic reticulum
(b) Cell wall
(c) Ribosomes
(d) Chloroplasts
Ans. (d)
22. The grana and stroma lamellae are the parts of
(a) Mitochondria
(b) Chloroplast
(c) Ribosomes
(d) Golgi bodies
Ans. (d)
23. When green tomatoes turn red then
(a) New chloroplast are made
(b) Chromoplast are changed into chloroplasts
(c) Chloroplasts are disintegrated and get converted into chromoplast
(d) None of these
Ans. (c)
24. Which one of the following is credited for discovering lysosomes?
(a) M. Calvin
(b) A. Claude
(c) Christian de Duve
(d) L.C. Pauling
Ans. (c)
25. Which of the following organelles are the cells ‘garbage disposal system’?
(a) Peroxisomes
(b) Golgi complex
(c) Phagosomes
(d) Lysosomes
Ans. (d)
BIOLOGY SAMPLE QUESTIONS FOR PGT TGT
tgt sample paper :Biology
1. Cell theory was propounded by
(a) Schleiden and Schwann
(b) Watson and Crick
(c) Mendel and Morgan
(d) Wallace and Darwin
Ans. (a)
2. The figures of cork cells as seen by Robert Hooke were published in his book
(a) Origin of Species
(b) Plant Kingdom
(c) Genra Plantarum
(d) Micrographia
Ans. (d)
3. The term ‘protoplasm’ was given by
(a) Purkinje
(b) Dujardin
(c) Brown
(d) Fischer
Ans. (a)
4. Who first coined the word “cell”?
(a) Aristotle
(b) Hooke
(c) Schwann
(d) Leeuwenhoek
Ans. (b)
5. Striking difference between a plant cell and an animal cell is due to the presence of
(a) Centrosome
(b) Plasma membrane
(c) Cell wall
(d) Chloroplast
Ans. (c)
6. Membranes occur in
(a) Cytoplasm, chloroplasts and mitochondria
(b) Cytoplasm, nuclei and starch grains
(c) Chromosomes, chloroplasts and starch grains
(d) Nuclei, chromosomes and mitochondria
Ans. (a)
7. Chemical nature of ribosomes is
(a) Beta galactosidase
(b) Proteins and lipids
(c) Glucose and sucrose
(d) Proteins and RNA
Ans. (d)
8. All are membrane bounded cell organelles except
(a) Mitochondria
(b) Spherosomes
(c) Ribosomes
(d) Lysosomes
Ans. (c)
9. The fine network of membranes distributed throughout the cytoplasm in a cell is
(a) golgi body
(b) mitochondria
(c) endoplasmic reticulum
(d) lysosomes
Ans. (c)
10. Smooth endoplasmic reticulum is well developed in the cells, which synthesise
(a) Steroids and lipids
(b) Carbohydrates
(c) Proteins
(d) All the above
Ans. (a)
11. If cells are broken up and sedimented by centrifugation, the new structure formed in one of the fractions is
(a) Lysosome
(b) Microsome
(c) Ribosome
(d) Centrosome
Ans. (b)
12. The Golgi complex plays a major role
(a) in digesting proteins and carbohydrates
(b) in trapping light quanta and transforming them into chemical energy
(c) in glycosidation of lipids and proteins to produce glycolipids and glycoproteins
(d) As energy transferring organelles
Ans. (c)
13. Besides giving out secretory vesicles the Golgi apparatus is also concerned with the formation of
(a) Lysosome
(b) Plastids
(c) Grana of chloroplast
(d) Cell plates after cell division in plants
Ans. (a)
14. Dictyosomes are
(a) Place of flagellar organelle
(b) Respiratory particle
(c) Golgi bodies
(d) Class of ribosomes
Ans. (c)
15. Cellulose and hemicellulose are the constituents of cell wall are synthesized by
(a) Microbodies
(b) Smooth endoplasmic reticulum
(c) Lysosome
(d) Golgi apparatus
Ans. (d)
16. Which organelle changes the chemical energy into utilizable energy?
(a) Lysosome
(b) Mitochondria
(c) Endoplasmic reticulum
(d) Microsome
Ans. (b)
17. Which of the following is NOT a non- protoplasmic cell inclusion?
(a) Cystolith
(b) Starch grain
(c) Raphide
(d) Mitochondrion
Ans. (d)
18. In which of the following parts of mitochondria succinic dehydrogenase enzyme and cytochrome oxidase is located?
(a) Inner membrane
(b) Outer membrane
(c) Perimitochondrial space
(d) Mitochondrial matrix
Ans. (a)
19. Mitochondria are found
(a) In all cells
(b) Only in plant cells
(c) Only in animal cells
(d) In all eukaryotic cells
Ans. (d)
20. The presence of DNA in mitochondria and chloroplast supports the hypothesis that
(a) Mitochondria and chloroplast both originated as independent free-living organisms
(b) Glycolysis occurs in both mitochondria and chloroplast
(c) Chloroplast and mitochondria undergo meiosis and mitosis independent of nucleus
(d) ATP is produced in chloroplast as well as mitochondria
Ans. (a)
21. If the leaf tissues are carefully fractionated, what part should be alive?
(a) Endoplasmic reticulum
(b) Cell wall
(c) Ribosomes
(d) Chloroplasts
Ans. (d)
22. The grana and stroma lamellae are the parts of
(a) Mitochondria
(b) Chloroplast
(c) Ribosomes
(d) Golgi bodies
Ans. (d)
23. When green tomatoes turn red then
(a) New chloroplast are made
(b) Chromoplast are changed into chloroplasts
(c) Chloroplasts are disintegrated and get converted into chromoplast
(d) None of these
Ans. (c)
24. Which one of the following is credited for discovering lysosomes?
(a) M. Calvin
(b) A. Claude
(c) Christian de Duve
(d) L.C. Pauling
Ans. (c)
25. Which of the following organelles are the cells ‘garbage disposal system’?
(a) Peroxisomes
(b) Golgi complex
(c) Phagosomes
(d) Lysosomes
Ans. (d)
Subscribe to:
Posts (Atom)