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E- mail : Website : www.gpccnamakkal.com
ZOOLOGY – GOLDEN STANDARD QUESTIONS
Choose the correct answer :
1. Choose the incorrect statements from the 4. Shown below is one of the steps of
following. decomposition cycle in terrestrial ecosystem.
A. GIFT involves the transfer of gametes into Choose the incorrect statement about it.
the fallopian tube, where fertilisation occurs
in vivo.
B. In IVF-ET, an embryo with up to 8
blastomeres is transferred into the fallopian
tube (ZIFT).
C. ICSI involves the injection of sperm
directly into the ovum in the fallopian tube. 1) The fallen leaf soon becomes the raw
1) Only B 2) Only C material for decomposition
3) A and C 4) B and C 2) The fallen leaf might be acted upon by
2. Arrange the following in ascending order detritivores for fragmentation
based on their numbers in India. 3) Enzymatic catabolism will not take place in
A. Biosphere reserves the fallen leaf until it is converted to
B. Biodiversity hotspots fragments
C. National parks 4) Water-soluble inorganic nutrients from
D. Wildlife sanctuaries decomposition of fallen leaf leach to the
1) B → A → C → D soil horizon
2) B → C → D → A 5. Choose the incorrect statements regarding the
immune response in human body.
3) A → B → C → D
A. Memory-based secondary response is
4) D → C → B → A
weaker but more specific than primary
3. During the initial stage of attachment
response.
(implantation) of the blastocyst to the uterine
B. B-lymphocytes are responsible for cell-
endometrium, which of the following
mediated immunity.
statements is correct?
C. T-lymphocytes help in graft rejection and
1) Zona pellucida is absent and the trophoblast
cell-mediated immune responses.
layer is exposed for contact
D. Antibodies are produced mainly by
2) Zona pellucida is still present to prevent
cytotoxic T-cells.
premature attachment
1) C only
3) The embryo is still at the 8-cell morula
stage 2) A, B and D only
3) C and D only
4) The inner cell mass has already formed the
three germ layers 4) A, B, C and D
, 2
6. Consider the following statements about age- 10. Given below are two statements:
pyramids Statement I: Each human antibody molecule
A) Age pyramids represents only reproductive consists of four distinct peptide chains: two
individuals. small heavy chains and two longer light
B) Stable populations show urn-shaped chains.
pyramids. Statement II: Antibodies circulate in the
C) Declining population show bell shaped blood, providing protection known as the
pyramids. cellular immune response.
D) Expanding population show triangular
In the light of the above statements, choose the
pyramids.
most appropriate answer from the options
Which among the given statements are
given below:
correct?
1) Both Statement I and Statement II are
1) B, C and D 2) A and B only
correct
3) D only 4) A, B and C
2) Both Statement I and Statement II are
7. Match the column-I, column-II and column-
incorrect
III. Select the correct option.
3) Statement I is correct but Statement II is
Column-I Column-II Column-III
incorrect
i. Reduced P. Penicillium
A. Ectoparasite 4) Statement I is incorrect but Statement II is
fitness notatum
correct
ii. Outer Q. Balanus &
B. Prey 11. Read the following statements.
surface of host Chathamalus
A. Ecosystems varies greatly in size.
iii. Release of
C. Amensalism R. Copepods B. Nutrient cycles, food chains and webs are
antibiotics
created as a result of the energy flows
S. Frogs &
D. Competition iv. Camouflage within the ecosystem.
insects
C. Typically, an ecosystem has four structural
1) A-ii-R ; B-i-S ; C-iii-P ; D-iv-Q
features and two functional features.
2) A-ii-S ; B-iv-R ; C-iii-P ; D-i-Q
D. Saprophytes are important components of
3) A-iv-Q ; B-ii-R ; C-iii-P; D-i-S
an ecosystem.
4) A-ii-R ; B-iv-S ; C-iii-P ; D-i-Q
E. The energy flow in an ecosystem does not
8. In the given list how many are not included in
follow the laws of thermodynamics.
innate immunity?
In the light of above statements choose the
Monocyte, Interferon, T-helper, Skin, Natural
correct answer from the options given below:
killer cell, Saliva in mouth, IgM
1) 1 2) 3 1) B, C and E are correct; A and D are
incorrect
3) 2 4) 4
9. A doctor prescribes administration of 2) C, D and E are correct; A and B are
cyclosporine A to a patient. Most likely, this incorrect
patient; 3) A, B and D are correct; C and E are
1) underwent myocardial infarction incorrect
2) has high blood cholesterol level 4) A, C and E are correct; B and D are
3) had an organ transplant incorrect
4) has deficiency of vitamin B12
E- mail : Website : www.gpccnamakkal.com
ZOOLOGY – GOLDEN STANDARD QUESTIONS
Choose the correct answer :
1. Choose the incorrect statements from the 4. Shown below is one of the steps of
following. decomposition cycle in terrestrial ecosystem.
A. GIFT involves the transfer of gametes into Choose the incorrect statement about it.
the fallopian tube, where fertilisation occurs
in vivo.
B. In IVF-ET, an embryo with up to 8
blastomeres is transferred into the fallopian
tube (ZIFT).
C. ICSI involves the injection of sperm
directly into the ovum in the fallopian tube. 1) The fallen leaf soon becomes the raw
1) Only B 2) Only C material for decomposition
3) A and C 4) B and C 2) The fallen leaf might be acted upon by
2. Arrange the following in ascending order detritivores for fragmentation
based on their numbers in India. 3) Enzymatic catabolism will not take place in
A. Biosphere reserves the fallen leaf until it is converted to
B. Biodiversity hotspots fragments
C. National parks 4) Water-soluble inorganic nutrients from
D. Wildlife sanctuaries decomposition of fallen leaf leach to the
1) B → A → C → D soil horizon
2) B → C → D → A 5. Choose the incorrect statements regarding the
immune response in human body.
3) A → B → C → D
A. Memory-based secondary response is
4) D → C → B → A
weaker but more specific than primary
3. During the initial stage of attachment
response.
(implantation) of the blastocyst to the uterine
B. B-lymphocytes are responsible for cell-
endometrium, which of the following
mediated immunity.
statements is correct?
C. T-lymphocytes help in graft rejection and
1) Zona pellucida is absent and the trophoblast
cell-mediated immune responses.
layer is exposed for contact
D. Antibodies are produced mainly by
2) Zona pellucida is still present to prevent
cytotoxic T-cells.
premature attachment
1) C only
3) The embryo is still at the 8-cell morula
stage 2) A, B and D only
3) C and D only
4) The inner cell mass has already formed the
three germ layers 4) A, B, C and D
, 2
6. Consider the following statements about age- 10. Given below are two statements:
pyramids Statement I: Each human antibody molecule
A) Age pyramids represents only reproductive consists of four distinct peptide chains: two
individuals. small heavy chains and two longer light
B) Stable populations show urn-shaped chains.
pyramids. Statement II: Antibodies circulate in the
C) Declining population show bell shaped blood, providing protection known as the
pyramids. cellular immune response.
D) Expanding population show triangular
In the light of the above statements, choose the
pyramids.
most appropriate answer from the options
Which among the given statements are
given below:
correct?
1) Both Statement I and Statement II are
1) B, C and D 2) A and B only
correct
3) D only 4) A, B and C
2) Both Statement I and Statement II are
7. Match the column-I, column-II and column-
incorrect
III. Select the correct option.
3) Statement I is correct but Statement II is
Column-I Column-II Column-III
incorrect
i. Reduced P. Penicillium
A. Ectoparasite 4) Statement I is incorrect but Statement II is
fitness notatum
correct
ii. Outer Q. Balanus &
B. Prey 11. Read the following statements.
surface of host Chathamalus
A. Ecosystems varies greatly in size.
iii. Release of
C. Amensalism R. Copepods B. Nutrient cycles, food chains and webs are
antibiotics
created as a result of the energy flows
S. Frogs &
D. Competition iv. Camouflage within the ecosystem.
insects
C. Typically, an ecosystem has four structural
1) A-ii-R ; B-i-S ; C-iii-P ; D-iv-Q
features and two functional features.
2) A-ii-S ; B-iv-R ; C-iii-P ; D-i-Q
D. Saprophytes are important components of
3) A-iv-Q ; B-ii-R ; C-iii-P; D-i-S
an ecosystem.
4) A-ii-R ; B-iv-S ; C-iii-P ; D-i-Q
E. The energy flow in an ecosystem does not
8. In the given list how many are not included in
follow the laws of thermodynamics.
innate immunity?
In the light of above statements choose the
Monocyte, Interferon, T-helper, Skin, Natural
correct answer from the options given below:
killer cell, Saliva in mouth, IgM
1) 1 2) 3 1) B, C and E are correct; A and D are
incorrect
3) 2 4) 4
9. A doctor prescribes administration of 2) C, D and E are correct; A and B are
cyclosporine A to a patient. Most likely, this incorrect
patient; 3) A, B and D are correct; C and E are
1) underwent myocardial infarction incorrect
2) has high blood cholesterol level 4) A, C and E are correct; B and D are
3) had an organ transplant incorrect
4) has deficiency of vitamin B12
