AIPMT 2010 Paper with Detailed Solutions | Additional Study Material for NEET PDF Download

 Page 1


Aakash Institute - Regd. Office: Aakash Tower, Plot No. 4, Sector-11, MLU, Dwarka, New Delhi-75 Ph.: 47623456 Fax: 47623472
(1)
Solutions
Time : 3 hrs. Max. Marks: 480
Code - C
1. Which one of the following pairs of structures is
correctly matched with their correct description?
Structures Description 
(1) 
Tibia and 
fibula 
– 
Both form parts of
knee joint
(2) 
Cartilage 
and cornea 
– 
No blood supply but
do require oxygen for
respiratory need
(3) 
Shoulder 
joint and 
elbow joint 
– 
Ball and socket type
of joint
(4) 
Premolars 
and molars 
– 
20 in all and
3
–
 rooted
Ans. (2)
Sol. Cartilage is avascular, as the blood vessels
innervate only perichondrium. In the formation of
knee joint, tibia is involved with femur.
2. Identify the components labelled A, B, C and D in
the diagram below from the list (i) to (viii) given
along with
Components:
(i) Cristae of mitochondria
(ii) Inner membrane of mitochondria
(iii) Cytoplasm
(iv) Smooth endoplasmic reticulum
(v) Rough endoplasmic reticulum
(vi) Mitochondrial matrix
(vii) Cell vacuole
(viii) Nucleus
The correct components are :
ABC D
(1) (v) (iv) (viii) (iii)
(2) (i) (iv) (viii) (vi)
(3) (vi) (v) (iv) (vii)
(4) (v) (i) (iii) (ii)
Ans. (1)
Sol. Golgi and ER are often found associated to nuclear
membrane.
3. Fastest distribution of some injectible material/
medicine and with no risk of any kind can be
achieved by injecting it into the
(1) Muscles (2) Arteries
(3) Veins (4) Lymph vessels
Ans. (3)
Sol. Intravenous injection is given for rapid distribution
of drugs/substance. Intramuscular injection is
given for producing local effect.
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Main Paper
Page 2


Aakash Institute - Regd. Office: Aakash Tower, Plot No. 4, Sector-11, MLU, Dwarka, New Delhi-75 Ph.: 47623456 Fax: 47623472
(1)
Solutions
Time : 3 hrs. Max. Marks: 480
Code - C
1. Which one of the following pairs of structures is
correctly matched with their correct description?
Structures Description 
(1) 
Tibia and 
fibula 
– 
Both form parts of
knee joint
(2) 
Cartilage 
and cornea 
– 
No blood supply but
do require oxygen for
respiratory need
(3) 
Shoulder 
joint and 
elbow joint 
– 
Ball and socket type
of joint
(4) 
Premolars 
and molars 
– 
20 in all and
3
–
 rooted
Ans. (2)
Sol. Cartilage is avascular, as the blood vessels
innervate only perichondrium. In the formation of
knee joint, tibia is involved with femur.
2. Identify the components labelled A, B, C and D in
the diagram below from the list (i) to (viii) given
along with
Components:
(i) Cristae of mitochondria
(ii) Inner membrane of mitochondria
(iii) Cytoplasm
(iv) Smooth endoplasmic reticulum
(v) Rough endoplasmic reticulum
(vi) Mitochondrial matrix
(vii) Cell vacuole
(viii) Nucleus
The correct components are :
ABC D
(1) (v) (iv) (viii) (iii)
(2) (i) (iv) (viii) (vi)
(3) (vi) (v) (iv) (vii)
(4) (v) (i) (iii) (ii)
Ans. (1)
Sol. Golgi and ER are often found associated to nuclear
membrane.
3. Fastest distribution of some injectible material/
medicine and with no risk of any kind can be
achieved by injecting it into the
(1) Muscles (2) Arteries
(3) Veins (4) Lymph vessels
Ans. (3)
Sol. Intravenous injection is given for rapid distribution
of drugs/substance. Intramuscular injection is
given for producing local effect.
MyCollegeBag.in 
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Free Coaching for HC Verma , Last Year question Paper, Sample Papers.
AIPMT NEET 2010
Main Paper
Aakash Institute - Regd. Office: Aakash T ower, Plot No. 4, Sector-11, MLU, Dwarka, New Delhi-75 Ph.: 47623456 Fax: 47623472
(2)
4. Which one of the following statements about the
particular entity is true?
(1) Centromere is found in animal cells, which
produces aster during cell division
(2) The gene for producing insulin is present in
every body cell
(3) Nucleosome is formed of nucleotides
(4) DNA consists of a core of eight histones
Ans. (2)
Sol. 'Centromere' is found in chromosomes where two
chromatids are attached.
'Insulin' gene is found in every body cell but is not
expressed in all cells.
5. Study the pedigree chart of a certain family given
below and select the correct conclusion which can
be drawn for the character
(1) The female parent is heterozygous
(2) The parents could not have had a normal
daughter for this character
(3) The trait under study could not be colour-
blindness
(4) The male parent is homozygous dominant
Ans. (1)
Sol.
aa
Aa
6. Leguminous plants are able to fix atmospheric
nitrogen through the process of symbiotic nitrogen
fixation. Which one of the following statements is
not correct during this process of nitrogen fixation?
(1) Leghae moglobin scavenges oxygen and is
pinkish in colour
(2) Nodules act as sites for nitrogen fixation
(3) The enzyme nitrogenase catalyses the
conversion of atmospheric N
2
 to NH
3
(4) Nitrogenase is insensitive to oxygen
Ans. (4)
Sol. Nitrogenase is sensitive against O
2
.
7. Which one of the following is a xerophytic plant in
which the stem is modified into the flat green and
succulent structure?
(1) Opuntia (2) Casuarina
(3) Hydrilla (4) Acacia
Ans. (1)
Sol. Opuntia – Phylloclade
8. The figure given below shows the conversion of a
substrate into product by an enzyme. In which one
of the four options (1–4) the components of reaction
labelled as A, B, C and D are identified correctly?
B
Substrate
Product
Progress of Reaction
C
D
A
Options:
 A B C D 
(1) Potential 
energy 
Transition 
state 
Activation 
energy with 
enzyme 
Activation 
energy 
without 
enzyme 
(2) Transition 
state 
Potential 
energy 
Activation 
energy 
without 
enzyme 
Activation 
energy 
with 
enzyme 
(3) Potential 
energy 
Transition 
state 
Activation 
energy with 
enzyme 
Activation 
energy 
without 
enzyme 
(4) Activation 
energy 
with 
enzyme 
Transition 
state 
Activation 
energy 
without 
enzyme 
Potential 
energy 
Ans. (2)
Sol. Activation energy is required for overcoming the
energy barrier which gets reduced in the presence
of enzyme.
9. Which of the following are used in gene cloning?
(1) Nucleoids (2) Lomasomes
(3) Mesosomes (4) Plasmids
Ans. (4)
Sol. Plasmids are used as the vector in gene cloning.
10. When domestic sewage mixes with river water
(1) Small animals like rats will die after drinking
river water
(2) The increased microbial activity releases micro-
nutrients such as iron
(3) The increased microbial activity uses up
dissolved oxygen
(4) The river water is still suitable for drinking as
impurities are only about 0.1%
Ans. (3)
Sol. Any mixing of sewage will increase BOD and
decrease of DO due to decomposing activity of
microbes.
Page 3


Aakash Institute - Regd. Office: Aakash Tower, Plot No. 4, Sector-11, MLU, Dwarka, New Delhi-75 Ph.: 47623456 Fax: 47623472
(1)
Solutions
Time : 3 hrs. Max. Marks: 480
Code - C
1. Which one of the following pairs of structures is
correctly matched with their correct description?
Structures Description 
(1) 
Tibia and 
fibula 
– 
Both form parts of
knee joint
(2) 
Cartilage 
and cornea 
– 
No blood supply but
do require oxygen for
respiratory need
(3) 
Shoulder 
joint and 
elbow joint 
– 
Ball and socket type
of joint
(4) 
Premolars 
and molars 
– 
20 in all and
3
–
 rooted
Ans. (2)
Sol. Cartilage is avascular, as the blood vessels
innervate only perichondrium. In the formation of
knee joint, tibia is involved with femur.
2. Identify the components labelled A, B, C and D in
the diagram below from the list (i) to (viii) given
along with
Components:
(i) Cristae of mitochondria
(ii) Inner membrane of mitochondria
(iii) Cytoplasm
(iv) Smooth endoplasmic reticulum
(v) Rough endoplasmic reticulum
(vi) Mitochondrial matrix
(vii) Cell vacuole
(viii) Nucleus
The correct components are :
ABC D
(1) (v) (iv) (viii) (iii)
(2) (i) (iv) (viii) (vi)
(3) (vi) (v) (iv) (vii)
(4) (v) (i) (iii) (ii)
Ans. (1)
Sol. Golgi and ER are often found associated to nuclear
membrane.
3. Fastest distribution of some injectible material/
medicine and with no risk of any kind can be
achieved by injecting it into the
(1) Muscles (2) Arteries
(3) Veins (4) Lymph vessels
Ans. (3)
Sol. Intravenous injection is given for rapid distribution
of drugs/substance. Intramuscular injection is
given for producing local effect.
MyCollegeBag.in 
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AIPMT NEET 2010
Main Paper
Aakash Institute - Regd. Office: Aakash T ower, Plot No. 4, Sector-11, MLU, Dwarka, New Delhi-75 Ph.: 47623456 Fax: 47623472
(2)
4. Which one of the following statements about the
particular entity is true?
(1) Centromere is found in animal cells, which
produces aster during cell division
(2) The gene for producing insulin is present in
every body cell
(3) Nucleosome is formed of nucleotides
(4) DNA consists of a core of eight histones
Ans. (2)
Sol. 'Centromere' is found in chromosomes where two
chromatids are attached.
'Insulin' gene is found in every body cell but is not
expressed in all cells.
5. Study the pedigree chart of a certain family given
below and select the correct conclusion which can
be drawn for the character
(1) The female parent is heterozygous
(2) The parents could not have had a normal
daughter for this character
(3) The trait under study could not be colour-
blindness
(4) The male parent is homozygous dominant
Ans. (1)
Sol.
aa
Aa
6. Leguminous plants are able to fix atmospheric
nitrogen through the process of symbiotic nitrogen
fixation. Which one of the following statements is
not correct during this process of nitrogen fixation?
(1) Leghae moglobin scavenges oxygen and is
pinkish in colour
(2) Nodules act as sites for nitrogen fixation
(3) The enzyme nitrogenase catalyses the
conversion of atmospheric N
2
 to NH
3
(4) Nitrogenase is insensitive to oxygen
Ans. (4)
Sol. Nitrogenase is sensitive against O
2
.
7. Which one of the following is a xerophytic plant in
which the stem is modified into the flat green and
succulent structure?
(1) Opuntia (2) Casuarina
(3) Hydrilla (4) Acacia
Ans. (1)
Sol. Opuntia – Phylloclade
8. The figure given below shows the conversion of a
substrate into product by an enzyme. In which one
of the four options (1–4) the components of reaction
labelled as A, B, C and D are identified correctly?
B
Substrate
Product
Progress of Reaction
C
D
A
Options:
 A B C D 
(1) Potential 
energy 
Transition 
state 
Activation 
energy with 
enzyme 
Activation 
energy 
without 
enzyme 
(2) Transition 
state 
Potential 
energy 
Activation 
energy 
without 
enzyme 
Activation 
energy 
with 
enzyme 
(3) Potential 
energy 
Transition 
state 
Activation 
energy with 
enzyme 
Activation 
energy 
without 
enzyme 
(4) Activation 
energy 
with 
enzyme 
Transition 
state 
Activation 
energy 
without 
enzyme 
Potential 
energy 
Ans. (2)
Sol. Activation energy is required for overcoming the
energy barrier which gets reduced in the presence
of enzyme.
9. Which of the following are used in gene cloning?
(1) Nucleoids (2) Lomasomes
(3) Mesosomes (4) Plasmids
Ans. (4)
Sol. Plasmids are used as the vector in gene cloning.
10. When domestic sewage mixes with river water
(1) Small animals like rats will die after drinking
river water
(2) The increased microbial activity releases micro-
nutrients such as iron
(3) The increased microbial activity uses up
dissolved oxygen
(4) The river water is still suitable for drinking as
impurities are only about 0.1%
Ans. (3)
Sol. Any mixing of sewage will increase BOD and
decrease of DO due to decomposing activity of
microbes.
Aakash Institute - Regd. Office: Aakash Tower, Plot No. 4, Sector-11, MLU, Dwarka, New Delhi-75 Ph.: 47623456 Fax: 47623472
(3)
11. Given below are four statements (A-D) each with
one or two blanks. Select the option which
correctly fills up the blanks in two statements
Statements:
(A) Wings of butterfly and birds look alike and are
the results of __(i)____, evolution.
(B) Miller showed that CH
4
, H
2
, NH
3
 and
___(i)___, when exposed to electric discharge in
a flask resulted in formation of ___(ii)_____.
(C) Vermiform appendix is a ___(i)____ organ and
an __(ii)_____ evidence of evolution.
(D) According to Darwin evolution took place due
to ___(i)___ and ___(ii)__ of the fittest.
Options :
(1) (D) – (i) Small variations, (ii) Survival,
(A) – (i) Convergent
(2) (A) – (i) Convergent,
(B) – (i) Oxygen, (ii) nucleosides
(2) (B) – (i) Water vapour, (ii) Amino acids
(C) – (i) Rudimentary, (ii) Anatomical
(4) (C) – (i) Vestigial, (ii) Anatomical
(D) – (i) Mutations, (ii) Multiplication
Ans. (1)
Sol. According to Darwin, evolution took place due to
small variations & survival of the fittest. Wings of
butterfly & birds are analogous or convergent.
Vermiform appendix is vestigial organ.
12. Aestivation of petals in the flower of cotton is
correctly shown in1
(1) (2)
(3) (4)
Ans. (4)
Sol. Lady's finger, cotton and china rose, all shows
twisted aestivation.
13. In which one of the following organisms its
excretory organs are correctly stated?
(1) Humans – Kidneys, sebaceous glands
and tear glands
(2) Earthworm – Pharyngeal, integumentary
and septal nephridia
(3) Cockroach – Malpighian tubules and
enteric caeca
(4) Frog – Kidneys, skin and buccal
epithelium
Ans. (2)
Sol. Earthworm has 3 types of nephridia.
14. Examine the figures A, B, C and D. In which one
of the four options all the items A, B, C and D are
correct?
Options:
A B C D
(1) Chara Marchantia Fucus Pinus 
(2) Equisetum Ginkgo Selaginella Lycopodium 
(3) Selaginella Equisetum Salvinia Ginkgo 
(4) Funaria Adiantum Salvinia Riccia 
Ans. (3)
Sol. A – Selaginella, B – Equisetum, C – Salvinia,
D – Ginkgo
15. The most apparent change during the evolutionary
history of Homo sapiens is traced in
(1) Loss of body hair
(2) Walking upright
(3) Shortening of the jaws
(4) Remarkable increase in the brain size
Ans. (4)
Sol. Brain size or cranial capacity shows gradual
increases in history of Homo sapiens.
16. Which one of the following is now being
commercially produced by biotechnological
procedures?
(1) Nicotine (2) Morphine
(3) Quinine (4) Insulin
Ans. (4)
Sol.Insulin is produced by synthesizing the
polypeptide A and polypeptide B separately and
then linking them.
Page 4


Aakash Institute - Regd. Office: Aakash Tower, Plot No. 4, Sector-11, MLU, Dwarka, New Delhi-75 Ph.: 47623456 Fax: 47623472
(1)
Solutions
Time : 3 hrs. Max. Marks: 480
Code - C
1. Which one of the following pairs of structures is
correctly matched with their correct description?
Structures Description 
(1) 
Tibia and 
fibula 
– 
Both form parts of
knee joint
(2) 
Cartilage 
and cornea 
– 
No blood supply but
do require oxygen for
respiratory need
(3) 
Shoulder 
joint and 
elbow joint 
– 
Ball and socket type
of joint
(4) 
Premolars 
and molars 
– 
20 in all and
3
–
 rooted
Ans. (2)
Sol. Cartilage is avascular, as the blood vessels
innervate only perichondrium. In the formation of
knee joint, tibia is involved with femur.
2. Identify the components labelled A, B, C and D in
the diagram below from the list (i) to (viii) given
along with
Components:
(i) Cristae of mitochondria
(ii) Inner membrane of mitochondria
(iii) Cytoplasm
(iv) Smooth endoplasmic reticulum
(v) Rough endoplasmic reticulum
(vi) Mitochondrial matrix
(vii) Cell vacuole
(viii) Nucleus
The correct components are :
ABC D
(1) (v) (iv) (viii) (iii)
(2) (i) (iv) (viii) (vi)
(3) (vi) (v) (iv) (vii)
(4) (v) (i) (iii) (ii)
Ans. (1)
Sol. Golgi and ER are often found associated to nuclear
membrane.
3. Fastest distribution of some injectible material/
medicine and with no risk of any kind can be
achieved by injecting it into the
(1) Muscles (2) Arteries
(3) Veins (4) Lymph vessels
Ans. (3)
Sol. Intravenous injection is given for rapid distribution
of drugs/substance. Intramuscular injection is
given for producing local effect.
MyCollegeBag.in 
The Best  Place for Free And Fare Education
Visit:MyCollegeBag.in  
Free Coaching for HC Verma , Last Year question Paper, Sample Papers.
AIPMT NEET 2010
Main Paper
Aakash Institute - Regd. Office: Aakash T ower, Plot No. 4, Sector-11, MLU, Dwarka, New Delhi-75 Ph.: 47623456 Fax: 47623472
(2)
4. Which one of the following statements about the
particular entity is true?
(1) Centromere is found in animal cells, which
produces aster during cell division
(2) The gene for producing insulin is present in
every body cell
(3) Nucleosome is formed of nucleotides
(4) DNA consists of a core of eight histones
Ans. (2)
Sol. 'Centromere' is found in chromosomes where two
chromatids are attached.
'Insulin' gene is found in every body cell but is not
expressed in all cells.
5. Study the pedigree chart of a certain family given
below and select the correct conclusion which can
be drawn for the character
(1) The female parent is heterozygous
(2) The parents could not have had a normal
daughter for this character
(3) The trait under study could not be colour-
blindness
(4) The male parent is homozygous dominant
Ans. (1)
Sol.
aa
Aa
6. Leguminous plants are able to fix atmospheric
nitrogen through the process of symbiotic nitrogen
fixation. Which one of the following statements is
not correct during this process of nitrogen fixation?
(1) Leghae moglobin scavenges oxygen and is
pinkish in colour
(2) Nodules act as sites for nitrogen fixation
(3) The enzyme nitrogenase catalyses the
conversion of atmospheric N
2
 to NH
3
(4) Nitrogenase is insensitive to oxygen
Ans. (4)
Sol. Nitrogenase is sensitive against O
2
.
7. Which one of the following is a xerophytic plant in
which the stem is modified into the flat green and
succulent structure?
(1) Opuntia (2) Casuarina
(3) Hydrilla (4) Acacia
Ans. (1)
Sol. Opuntia – Phylloclade
8. The figure given below shows the conversion of a
substrate into product by an enzyme. In which one
of the four options (1–4) the components of reaction
labelled as A, B, C and D are identified correctly?
B
Substrate
Product
Progress of Reaction
C
D
A
Options:
 A B C D 
(1) Potential 
energy 
Transition 
state 
Activation 
energy with 
enzyme 
Activation 
energy 
without 
enzyme 
(2) Transition 
state 
Potential 
energy 
Activation 
energy 
without 
enzyme 
Activation 
energy 
with 
enzyme 
(3) Potential 
energy 
Transition 
state 
Activation 
energy with 
enzyme 
Activation 
energy 
without 
enzyme 
(4) Activation 
energy 
with 
enzyme 
Transition 
state 
Activation 
energy 
without 
enzyme 
Potential 
energy 
Ans. (2)
Sol. Activation energy is required for overcoming the
energy barrier which gets reduced in the presence
of enzyme.
9. Which of the following are used in gene cloning?
(1) Nucleoids (2) Lomasomes
(3) Mesosomes (4) Plasmids
Ans. (4)
Sol. Plasmids are used as the vector in gene cloning.
10. When domestic sewage mixes with river water
(1) Small animals like rats will die after drinking
river water
(2) The increased microbial activity releases micro-
nutrients such as iron
(3) The increased microbial activity uses up
dissolved oxygen
(4) The river water is still suitable for drinking as
impurities are only about 0.1%
Ans. (3)
Sol. Any mixing of sewage will increase BOD and
decrease of DO due to decomposing activity of
microbes.
Aakash Institute - Regd. Office: Aakash Tower, Plot No. 4, Sector-11, MLU, Dwarka, New Delhi-75 Ph.: 47623456 Fax: 47623472
(3)
11. Given below are four statements (A-D) each with
one or two blanks. Select the option which
correctly fills up the blanks in two statements
Statements:
(A) Wings of butterfly and birds look alike and are
the results of __(i)____, evolution.
(B) Miller showed that CH
4
, H
2
, NH
3
 and
___(i)___, when exposed to electric discharge in
a flask resulted in formation of ___(ii)_____.
(C) Vermiform appendix is a ___(i)____ organ and
an __(ii)_____ evidence of evolution.
(D) According to Darwin evolution took place due
to ___(i)___ and ___(ii)__ of the fittest.
Options :
(1) (D) – (i) Small variations, (ii) Survival,
(A) – (i) Convergent
(2) (A) – (i) Convergent,
(B) – (i) Oxygen, (ii) nucleosides
(2) (B) – (i) Water vapour, (ii) Amino acids
(C) – (i) Rudimentary, (ii) Anatomical
(4) (C) – (i) Vestigial, (ii) Anatomical
(D) – (i) Mutations, (ii) Multiplication
Ans. (1)
Sol. According to Darwin, evolution took place due to
small variations & survival of the fittest. Wings of
butterfly & birds are analogous or convergent.
Vermiform appendix is vestigial organ.
12. Aestivation of petals in the flower of cotton is
correctly shown in1
(1) (2)
(3) (4)
Ans. (4)
Sol. Lady's finger, cotton and china rose, all shows
twisted aestivation.
13. In which one of the following organisms its
excretory organs are correctly stated?
(1) Humans – Kidneys, sebaceous glands
and tear glands
(2) Earthworm – Pharyngeal, integumentary
and septal nephridia
(3) Cockroach – Malpighian tubules and
enteric caeca
(4) Frog – Kidneys, skin and buccal
epithelium
Ans. (2)
Sol. Earthworm has 3 types of nephridia.
14. Examine the figures A, B, C and D. In which one
of the four options all the items A, B, C and D are
correct?
Options:
A B C D
(1) Chara Marchantia Fucus Pinus 
(2) Equisetum Ginkgo Selaginella Lycopodium 
(3) Selaginella Equisetum Salvinia Ginkgo 
(4) Funaria Adiantum Salvinia Riccia 
Ans. (3)
Sol. A – Selaginella, B – Equisetum, C – Salvinia,
D – Ginkgo
15. The most apparent change during the evolutionary
history of Homo sapiens is traced in
(1) Loss of body hair
(2) Walking upright
(3) Shortening of the jaws
(4) Remarkable increase in the brain size
Ans. (4)
Sol. Brain size or cranial capacity shows gradual
increases in history of Homo sapiens.
16. Which one of the following is now being
commercially produced by biotechnological
procedures?
(1) Nicotine (2) Morphine
(3) Quinine (4) Insulin
Ans. (4)
Sol.Insulin is produced by synthesizing the
polypeptide A and polypeptide B separately and
then linking them.
Aakash Institute - Regd. Office: Aakash T ower, Plot No. 4, Sector-11, MLU, Dwarka, New Delhi-75 Ph.: 47623456 Fax: 47623472
(4)
17. The correct floral formula of soybean is
(1)
(2)
(3)
(4)
Ans. (3)
Sol. (w.r.t. NCERT)
18. If for some reason the parietal cells of the gut
epithelium become partially non-functional, what is
likely to happen?
(1) The pancreatic enzymes and specially the
trypsin and lipase will not work efficiently
(2) The pH of stomach will fall abruptly
(3) Steapsin will be more effective
(4) Proteins will not be adequately hydrolysed by
pepsin into proteoses and peptones
Ans. (4)
Sol. Parietal or oxyntic cells release HCl required for
the activation of pepsin.
19. Which one of the following is most appropriately
defined?
(1) Host is an organism which provides food to
another organism
(2) Amensalism is a relationship in which one
species is benefited whereas the other is
unaffected
(3) Predator is an organism that catches and kills
other organism for food
(4) Parasite is an organism which always lives inside
the body of other organism and may kill it
Ans. (3)
Sol. Term 'Host' is specific to  parasitic relation only.
20. Read the following four statements, A, B, C and D
and select the right option having both correct
statements.
STATEMENTS :
(A) Z scheme of light reaction takes place in
presence of PSI only.
(B) Only PS I is functional in cyclic
photophosphorylation.
(C) Cyclic photophosphorylation results into
synthesis of ATP and NADPH
2
(D) Stroma lamellae lack PS II as well as NADP.
Options :
(1) B and D (2) A and B
(3) B and C (4) C and D
Ans. (1)
Sol. It requires both PS-II and PS-I, where PS-II is
more important. Stroma lamella contains PS-I
only.
21. Which one of the following techniques is safest for
the detection of cancers?
(1) Magnetic resonance imaging (MRI)
(2) Radiography (X-ray)
(3) Computed tomography (CT)
(4) Histopathological studies
Ans. (1)
Sol. Histopathological study is the invasive technique.
Radiography and CT involves X-rays which are
harmful.
22. Signals from fully developed foetus and placenta
ultimately lead to parturition which requires the
release of
(1) Estrogen from placenta
(2) Oxytocin from maternal pituitary
(3) Oxytocin from foetal pituitary
(4) Relaxin from placenta
Ans. (2)
Sol. Oxytocin or Pitocin released from maternal
pituitary causes contractions in the uterine
muscles to help in parturition.
23. Select the correct matching of a hormone, its
source and function.
Hormone Source Function 
(1) Vasopressin Posterior 
pituitary 
Increases loss of 
water through 
urine 
(2) Norepinephrine Adrenal 
medulla 
Increases heart 
beat, rate of 
respiration and 
alertness 
(3) Glucagon Beta-cells 
of Islets of 
langerhans 
Stimulates 
glycogenolysis 
(4) Prolactin Posterior 
Pituitary 
Regulates growth 
of mammary 
glands and milk 
formation in 
females 
Ans. (2)
Sol. Vasopressin decreases loss of water through urine.
Glucagon is released from a-cells. Prolactin is
released from anterior pituitary.
24. In eukaryotic cell transcription, RNA splicing and
RNA capping take place inside the
(1) Ribosomes (2) Nucleus
(3) Dictyosomes (4) ER
Ans. (2)
Sol. Mature mRNA comes out in cytoplasm only after
completion of splicing, capping and tailing.
Page 5


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(1)
Solutions
Time : 3 hrs. Max. Marks: 480
Code - C
1. Which one of the following pairs of structures is
correctly matched with their correct description?
Structures Description 
(1) 
Tibia and 
fibula 
– 
Both form parts of
knee joint
(2) 
Cartilage 
and cornea 
– 
No blood supply but
do require oxygen for
respiratory need
(3) 
Shoulder 
joint and 
elbow joint 
– 
Ball and socket type
of joint
(4) 
Premolars 
and molars 
– 
20 in all and
3
–
 rooted
Ans. (2)
Sol. Cartilage is avascular, as the blood vessels
innervate only perichondrium. In the formation of
knee joint, tibia is involved with femur.
2. Identify the components labelled A, B, C and D in
the diagram below from the list (i) to (viii) given
along with
Components:
(i) Cristae of mitochondria
(ii) Inner membrane of mitochondria
(iii) Cytoplasm
(iv) Smooth endoplasmic reticulum
(v) Rough endoplasmic reticulum
(vi) Mitochondrial matrix
(vii) Cell vacuole
(viii) Nucleus
The correct components are :
ABC D
(1) (v) (iv) (viii) (iii)
(2) (i) (iv) (viii) (vi)
(3) (vi) (v) (iv) (vii)
(4) (v) (i) (iii) (ii)
Ans. (1)
Sol. Golgi and ER are often found associated to nuclear
membrane.
3. Fastest distribution of some injectible material/
medicine and with no risk of any kind can be
achieved by injecting it into the
(1) Muscles (2) Arteries
(3) Veins (4) Lymph vessels
Ans. (3)
Sol. Intravenous injection is given for rapid distribution
of drugs/substance. Intramuscular injection is
given for producing local effect.
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4. Which one of the following statements about the
particular entity is true?
(1) Centromere is found in animal cells, which
produces aster during cell division
(2) The gene for producing insulin is present in
every body cell
(3) Nucleosome is formed of nucleotides
(4) DNA consists of a core of eight histones
Ans. (2)
Sol. 'Centromere' is found in chromosomes where two
chromatids are attached.
'Insulin' gene is found in every body cell but is not
expressed in all cells.
5. Study the pedigree chart of a certain family given
below and select the correct conclusion which can
be drawn for the character
(1) The female parent is heterozygous
(2) The parents could not have had a normal
daughter for this character
(3) The trait under study could not be colour-
blindness
(4) The male parent is homozygous dominant
Ans. (1)
Sol.
aa
Aa
6. Leguminous plants are able to fix atmospheric
nitrogen through the process of symbiotic nitrogen
fixation. Which one of the following statements is
not correct during this process of nitrogen fixation?
(1) Leghae moglobin scavenges oxygen and is
pinkish in colour
(2) Nodules act as sites for nitrogen fixation
(3) The enzyme nitrogenase catalyses the
conversion of atmospheric N
2
 to NH
3
(4) Nitrogenase is insensitive to oxygen
Ans. (4)
Sol. Nitrogenase is sensitive against O
2
.
7. Which one of the following is a xerophytic plant in
which the stem is modified into the flat green and
succulent structure?
(1) Opuntia (2) Casuarina
(3) Hydrilla (4) Acacia
Ans. (1)
Sol. Opuntia – Phylloclade
8. The figure given below shows the conversion of a
substrate into product by an enzyme. In which one
of the four options (1–4) the components of reaction
labelled as A, B, C and D are identified correctly?
B
Substrate
Product
Progress of Reaction
C
D
A
Options:
 A B C D 
(1) Potential 
energy 
Transition 
state 
Activation 
energy with 
enzyme 
Activation 
energy 
without 
enzyme 
(2) Transition 
state 
Potential 
energy 
Activation 
energy 
without 
enzyme 
Activation 
energy 
with 
enzyme 
(3) Potential 
energy 
Transition 
state 
Activation 
energy with 
enzyme 
Activation 
energy 
without 
enzyme 
(4) Activation 
energy 
with 
enzyme 
Transition 
state 
Activation 
energy 
without 
enzyme 
Potential 
energy 
Ans. (2)
Sol. Activation energy is required for overcoming the
energy barrier which gets reduced in the presence
of enzyme.
9. Which of the following are used in gene cloning?
(1) Nucleoids (2) Lomasomes
(3) Mesosomes (4) Plasmids
Ans. (4)
Sol. Plasmids are used as the vector in gene cloning.
10. When domestic sewage mixes with river water
(1) Small animals like rats will die after drinking
river water
(2) The increased microbial activity releases micro-
nutrients such as iron
(3) The increased microbial activity uses up
dissolved oxygen
(4) The river water is still suitable for drinking as
impurities are only about 0.1%
Ans. (3)
Sol. Any mixing of sewage will increase BOD and
decrease of DO due to decomposing activity of
microbes.
Aakash Institute - Regd. Office: Aakash Tower, Plot No. 4, Sector-11, MLU, Dwarka, New Delhi-75 Ph.: 47623456 Fax: 47623472
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11. Given below are four statements (A-D) each with
one or two blanks. Select the option which
correctly fills up the blanks in two statements
Statements:
(A) Wings of butterfly and birds look alike and are
the results of __(i)____, evolution.
(B) Miller showed that CH
4
, H
2
, NH
3
 and
___(i)___, when exposed to electric discharge in
a flask resulted in formation of ___(ii)_____.
(C) Vermiform appendix is a ___(i)____ organ and
an __(ii)_____ evidence of evolution.
(D) According to Darwin evolution took place due
to ___(i)___ and ___(ii)__ of the fittest.
Options :
(1) (D) – (i) Small variations, (ii) Survival,
(A) – (i) Convergent
(2) (A) – (i) Convergent,
(B) – (i) Oxygen, (ii) nucleosides
(2) (B) – (i) Water vapour, (ii) Amino acids
(C) – (i) Rudimentary, (ii) Anatomical
(4) (C) – (i) Vestigial, (ii) Anatomical
(D) – (i) Mutations, (ii) Multiplication
Ans. (1)
Sol. According to Darwin, evolution took place due to
small variations & survival of the fittest. Wings of
butterfly & birds are analogous or convergent.
Vermiform appendix is vestigial organ.
12. Aestivation of petals in the flower of cotton is
correctly shown in1
(1) (2)
(3) (4)
Ans. (4)
Sol. Lady's finger, cotton and china rose, all shows
twisted aestivation.
13. In which one of the following organisms its
excretory organs are correctly stated?
(1) Humans – Kidneys, sebaceous glands
and tear glands
(2) Earthworm – Pharyngeal, integumentary
and septal nephridia
(3) Cockroach – Malpighian tubules and
enteric caeca
(4) Frog – Kidneys, skin and buccal
epithelium
Ans. (2)
Sol. Earthworm has 3 types of nephridia.
14. Examine the figures A, B, C and D. In which one
of the four options all the items A, B, C and D are
correct?
Options:
A B C D
(1) Chara Marchantia Fucus Pinus 
(2) Equisetum Ginkgo Selaginella Lycopodium 
(3) Selaginella Equisetum Salvinia Ginkgo 
(4) Funaria Adiantum Salvinia Riccia 
Ans. (3)
Sol. A – Selaginella, B – Equisetum, C – Salvinia,
D – Ginkgo
15. The most apparent change during the evolutionary
history of Homo sapiens is traced in
(1) Loss of body hair
(2) Walking upright
(3) Shortening of the jaws
(4) Remarkable increase in the brain size
Ans. (4)
Sol. Brain size or cranial capacity shows gradual
increases in history of Homo sapiens.
16. Which one of the following is now being
commercially produced by biotechnological
procedures?
(1) Nicotine (2) Morphine
(3) Quinine (4) Insulin
Ans. (4)
Sol.Insulin is produced by synthesizing the
polypeptide A and polypeptide B separately and
then linking them.
Aakash Institute - Regd. Office: Aakash T ower, Plot No. 4, Sector-11, MLU, Dwarka, New Delhi-75 Ph.: 47623456 Fax: 47623472
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17. The correct floral formula of soybean is
(1)
(2)
(3)
(4)
Ans. (3)
Sol. (w.r.t. NCERT)
18. If for some reason the parietal cells of the gut
epithelium become partially non-functional, what is
likely to happen?
(1) The pancreatic enzymes and specially the
trypsin and lipase will not work efficiently
(2) The pH of stomach will fall abruptly
(3) Steapsin will be more effective
(4) Proteins will not be adequately hydrolysed by
pepsin into proteoses and peptones
Ans. (4)
Sol. Parietal or oxyntic cells release HCl required for
the activation of pepsin.
19. Which one of the following is most appropriately
defined?
(1) Host is an organism which provides food to
another organism
(2) Amensalism is a relationship in which one
species is benefited whereas the other is
unaffected
(3) Predator is an organism that catches and kills
other organism for food
(4) Parasite is an organism which always lives inside
the body of other organism and may kill it
Ans. (3)
Sol. Term 'Host' is specific to  parasitic relation only.
20. Read the following four statements, A, B, C and D
and select the right option having both correct
statements.
STATEMENTS :
(A) Z scheme of light reaction takes place in
presence of PSI only.
(B) Only PS I is functional in cyclic
photophosphorylation.
(C) Cyclic photophosphorylation results into
synthesis of ATP and NADPH
2
(D) Stroma lamellae lack PS II as well as NADP.
Options :
(1) B and D (2) A and B
(3) B and C (4) C and D
Ans. (1)
Sol. It requires both PS-II and PS-I, where PS-II is
more important. Stroma lamella contains PS-I
only.
21. Which one of the following techniques is safest for
the detection of cancers?
(1) Magnetic resonance imaging (MRI)
(2) Radiography (X-ray)
(3) Computed tomography (CT)
(4) Histopathological studies
Ans. (1)
Sol. Histopathological study is the invasive technique.
Radiography and CT involves X-rays which are
harmful.
22. Signals from fully developed foetus and placenta
ultimately lead to parturition which requires the
release of
(1) Estrogen from placenta
(2) Oxytocin from maternal pituitary
(3) Oxytocin from foetal pituitary
(4) Relaxin from placenta
Ans. (2)
Sol. Oxytocin or Pitocin released from maternal
pituitary causes contractions in the uterine
muscles to help in parturition.
23. Select the correct matching of a hormone, its
source and function.
Hormone Source Function 
(1) Vasopressin Posterior 
pituitary 
Increases loss of 
water through 
urine 
(2) Norepinephrine Adrenal 
medulla 
Increases heart 
beat, rate of 
respiration and 
alertness 
(3) Glucagon Beta-cells 
of Islets of 
langerhans 
Stimulates 
glycogenolysis 
(4) Prolactin Posterior 
Pituitary 
Regulates growth 
of mammary 
glands and milk 
formation in 
females 
Ans. (2)
Sol. Vasopressin decreases loss of water through urine.
Glucagon is released from a-cells. Prolactin is
released from anterior pituitary.
24. In eukaryotic cell transcription, RNA splicing and
RNA capping take place inside the
(1) Ribosomes (2) Nucleus
(3) Dictyosomes (4) ER
Ans. (2)
Sol. Mature mRNA comes out in cytoplasm only after
completion of splicing, capping and tailing.
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25. Given below are four statements (a-d) regarding
human blood circulatory system
(a) Arteries are thick-walled and have narrow
lumen as compared to veins
(b) Angina is acute chest pain when the blood
circulation to the brain is reduced
(c) Persons with blood group AB can donate blood
to any person with any blood group under ABO
system
(d) Calcium ions play a very important role in
blood clotting
Which two of the above statements are correct?
(1) (a) & (d) (2) (a) & (b)
(3) (b) & (c) (4) (c) & (d)
Ans. (1)
Sol. Angina is due to reduced blood supply to heart
wall. Person with blood group AB is universal
recepient.
26. In human female the blastocyst
(1) Forms placenta even before implantation
(2) Gets implanted into uterus 3 days after
ovulation
(3) Gets nutrition from uterine endometrial
secretion only after implantation
(4) Gets implanted in endometrium by the
trophoblast cells
Ans. (4)
Sol.Blastocyst starts getting nutrition before
implantation.
27. The haemoglobin content per 100 ml of blood of a
normal healthy human adult is
(1) 5 - 11 g (2) 25 - 30 g
(3) 17 - 20 g (4) 12 - 16 g
Ans. (4)
28. An example of endomycorrhiza is
(1) Nostoc (2) Glomus
(3) Agaricus (4) Rhizobium
Ans. (2)
Sol. Nostoc -BGA, Agaricus- Basidiomycetes,
Rhizobium - Eubacteria
29. One of the commonly used plant growth hormone
is tea plantations is
(1) Ethylene
(2) Abscisic acid
(3) Zeatin
(4) Indole - 3 - acetic acid
Ans. (4)
Sol. Auxins are commonly used in stem cutting.
30. Study the cycle shown below and select the option
which gives correct words for all the four blanks
A, B, C and D.
Options:
Ans. (2)
Sol. A – Denitrification, B – Ammonification,
C – Plants, D-Animals
31. Jaundice is a disorder of
(1) Excretory system
(2) Skin and eyes
(3) Digestive system
(4) Circulatoy system
Ans. (3)
Sol. Jaundice can be due to blockage/inflammation of
bile duct.
32. Kranz anatomy is one of the characteristics of the
leaves of
(1) Potato (2) Wheat
(3) Sugarcane (4) Mustard
Ans. (3)
Sol. Sugarcane – C
4
 plant