CLASS 10
SCIENCE
MOCK PAPER
UNIT - 2
WITH SOLUTIONS
CHAPTERS COVERED
Biology
5. Life Processes
6. Control and Coordination
7. How do Organisms Reproduce?
8. Heredity
This is a FREE PDF from our best-selling
One Shot Educart Science Question
Bank for 2024-25.
, MOCK PAPER-2
Solved
SCIENCE
Time Allowed: 3 Hours Maximum Marks: 80
General Instructions: Same instructions as given in the Mock Paper 1.
SECTION - A
(Select and write most appropriate option out of the four options given for each of the questions 1-20.
There is no negative mark for incorrect response.)
1. Which one of the following conditions is (a) Thyroxin (b) Insulin
true for the state of stomata of a green leaf (c) Oestrogen (d) Cytokinin 1
shown in the given diagram?
5. In which of the following groups of
organisms, blood flows through the heart
only once during one cycle of passage
Stomata through the body?
(a) Rabbit, Parrot, Turtle
Guard cells (b) Frog, Crocodile, Pigeon
(c) Whale, Labeo, Penguin
(d) Shark, Dog fish, Sting ray 1
(a) Large amount of water flows into the 6. The number of chromosomes in parents and
guard cells. offsprings of a particular species remains
(b) Gaseous exchange is occurring in large constant due to:
amount. (a) doubling of chromosomes after zygote
(c) Large amount of water flows out from formation.
the guard cells. (b) halving of chromosomes during gamete
(d) Large amount of sugar collects in the formation.
guard cells. 1 (c) doubling of chromosomes after gamete
formation.
2. Involuntary actions in the body are (d) halving of chromosomes after gamete
controlled by: formation. 1
(a) medulla in the forebrain 7. Gargi loved eating sugar candies. So,
(b) medulla in the midbrain whenever she went to local melas or school
(c) medulla in the hindbrain trips, she would have only sugar candies.
(d) medulla in the spinal cord 1
3. Identify the correct statement:
(a) The development of child inside mother's
body takes approximately nine months.
(b) The ovary releases two eggs per month.
(c) The placenta contains villi on mother's
side of the tissue.
(d) The fertilised egg is called embryo and it
divides to form zygote. 1
4. Which of the following hormone is not found
in human beings?
Mock Paper-2 1
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, Which is the first enzyme to get mixed with Offspring formed by asexual method of
food in her digestive tract? reproduction have greater similarity among
(a) Pepsin (b) Cellulase themselves because:
(c) Amylase (d) Trypsin 1 (I) asexual reproduction involves only one
parent
8. Which one of the following statements is
(II) asexual reproduction does not involve
correct about the human circulatory system?
gametes
(a) Blood transports only oxygen and not
carbon dioxide. (III) asexual reproduction occurs before
(b) Human heart has five chambers. sexual reproduction
(c) Valves ensure that the blood does not (IV) asexual reproduction occurs after sexual
flow backwards. reproduction
(d) Both oxygen-rich and oxygen-deficient Options:
blood gets mixed in the heart. 1 (a) (I) and (II) (b) (I) and (III)
9. Person X suffers from a condition that affects (c) (II) and (IV) (d) (III) and (IV) 1
the normal functioning of the pituitary 14. The doctor measured Ravi’s blood pressure
gland. Which of the following is most likely a and said it is normal now. The range of
direct effect of person X's condition? Ravi’s blood pressure (systolic/diastolic) is
(a) insufficiency of iodine likely to be:
(b) irregular heartbeat 120 160
(a) mm of Hg (b) mm of Hg
(c) insufficient growth of the body 80 80
(d) inability to regulate blood sugar 1 120 180
(c) mm of Hg (d) mm of Hg
10. Which of the following statements are true 60 80 1
for flowers? 15. What is a likely limitation of electric
(I) Flowers are always bisexual impulse?
(II) They are the sexual reproductive organs (a) The electric impulses travel slowly
(III) They are produced in all groups of plants between the neurons.
(IV) After fertilisation, they give rise to fruits (b) The electric impulses allow signal
Options: transmission in multiple directions.
(a) (I) and (IV) (b) (II) and (III) (c) The electric impulses are transmitted to
(c) (I) and (III) (d) (II) and (IV) 1 only those body parts that are connected
to neurons.
11. Which of these health conditions is caused
by a hormonal imbalance in the body? (d) The electric impulses once generated
(a) Scurvy (b) Typhoid needs to be transmitted quickly within
(c) Diabetes (d) Common cold 1 the body. 1
12. Most of the digestion and absorption of the 16. The image shows the female reproductive
food takes place in the: system.
(a) small intestine (b) liver
Oviduct or
(c) stomach (d) large intestine 1 Fallopian tube
13. Asexual reproduction in starfish takes place
by fission or through autotomy of arms. Ovary
In fission, the central disc breaks into two
pieces and each portion then regenerates Uterus
the missing parts. In autotomy, an arm is
Cervix
shed with part of the central disc attached,
which continues to live independently as a Vagina
“comet”, eventually growing a new set of
Which event will be likely affected, if
arms.
a female's uterus is implanted with
intrauterine device?
(a) release of eggs
(b) entering of sperms
(c) maturation of eggs
(d) implantation of embryo 1
2 One Shot Science Class X
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SCIENCE
MOCK PAPER
UNIT - 2
WITH SOLUTIONS
CHAPTERS COVERED
Biology
5. Life Processes
6. Control and Coordination
7. How do Organisms Reproduce?
8. Heredity
This is a FREE PDF from our best-selling
One Shot Educart Science Question
Bank for 2024-25.
, MOCK PAPER-2
Solved
SCIENCE
Time Allowed: 3 Hours Maximum Marks: 80
General Instructions: Same instructions as given in the Mock Paper 1.
SECTION - A
(Select and write most appropriate option out of the four options given for each of the questions 1-20.
There is no negative mark for incorrect response.)
1. Which one of the following conditions is (a) Thyroxin (b) Insulin
true for the state of stomata of a green leaf (c) Oestrogen (d) Cytokinin 1
shown in the given diagram?
5. In which of the following groups of
organisms, blood flows through the heart
only once during one cycle of passage
Stomata through the body?
(a) Rabbit, Parrot, Turtle
Guard cells (b) Frog, Crocodile, Pigeon
(c) Whale, Labeo, Penguin
(d) Shark, Dog fish, Sting ray 1
(a) Large amount of water flows into the 6. The number of chromosomes in parents and
guard cells. offsprings of a particular species remains
(b) Gaseous exchange is occurring in large constant due to:
amount. (a) doubling of chromosomes after zygote
(c) Large amount of water flows out from formation.
the guard cells. (b) halving of chromosomes during gamete
(d) Large amount of sugar collects in the formation.
guard cells. 1 (c) doubling of chromosomes after gamete
formation.
2. Involuntary actions in the body are (d) halving of chromosomes after gamete
controlled by: formation. 1
(a) medulla in the forebrain 7. Gargi loved eating sugar candies. So,
(b) medulla in the midbrain whenever she went to local melas or school
(c) medulla in the hindbrain trips, she would have only sugar candies.
(d) medulla in the spinal cord 1
3. Identify the correct statement:
(a) The development of child inside mother's
body takes approximately nine months.
(b) The ovary releases two eggs per month.
(c) The placenta contains villi on mother's
side of the tissue.
(d) The fertilised egg is called embryo and it
divides to form zygote. 1
4. Which of the following hormone is not found
in human beings?
Mock Paper-2 1
Click here to buy Latest Educart Class 10 Books - https://amzn.to/4cw1M5E
, Which is the first enzyme to get mixed with Offspring formed by asexual method of
food in her digestive tract? reproduction have greater similarity among
(a) Pepsin (b) Cellulase themselves because:
(c) Amylase (d) Trypsin 1 (I) asexual reproduction involves only one
parent
8. Which one of the following statements is
(II) asexual reproduction does not involve
correct about the human circulatory system?
gametes
(a) Blood transports only oxygen and not
carbon dioxide. (III) asexual reproduction occurs before
(b) Human heart has five chambers. sexual reproduction
(c) Valves ensure that the blood does not (IV) asexual reproduction occurs after sexual
flow backwards. reproduction
(d) Both oxygen-rich and oxygen-deficient Options:
blood gets mixed in the heart. 1 (a) (I) and (II) (b) (I) and (III)
9. Person X suffers from a condition that affects (c) (II) and (IV) (d) (III) and (IV) 1
the normal functioning of the pituitary 14. The doctor measured Ravi’s blood pressure
gland. Which of the following is most likely a and said it is normal now. The range of
direct effect of person X's condition? Ravi’s blood pressure (systolic/diastolic) is
(a) insufficiency of iodine likely to be:
(b) irregular heartbeat 120 160
(a) mm of Hg (b) mm of Hg
(c) insufficient growth of the body 80 80
(d) inability to regulate blood sugar 1 120 180
(c) mm of Hg (d) mm of Hg
10. Which of the following statements are true 60 80 1
for flowers? 15. What is a likely limitation of electric
(I) Flowers are always bisexual impulse?
(II) They are the sexual reproductive organs (a) The electric impulses travel slowly
(III) They are produced in all groups of plants between the neurons.
(IV) After fertilisation, they give rise to fruits (b) The electric impulses allow signal
Options: transmission in multiple directions.
(a) (I) and (IV) (b) (II) and (III) (c) The electric impulses are transmitted to
(c) (I) and (III) (d) (II) and (IV) 1 only those body parts that are connected
to neurons.
11. Which of these health conditions is caused
by a hormonal imbalance in the body? (d) The electric impulses once generated
(a) Scurvy (b) Typhoid needs to be transmitted quickly within
(c) Diabetes (d) Common cold 1 the body. 1
12. Most of the digestion and absorption of the 16. The image shows the female reproductive
food takes place in the: system.
(a) small intestine (b) liver
Oviduct or
(c) stomach (d) large intestine 1 Fallopian tube
13. Asexual reproduction in starfish takes place
by fission or through autotomy of arms. Ovary
In fission, the central disc breaks into two
pieces and each portion then regenerates Uterus
the missing parts. In autotomy, an arm is
Cervix
shed with part of the central disc attached,
which continues to live independently as a Vagina
“comet”, eventually growing a new set of
Which event will be likely affected, if
arms.
a female's uterus is implanted with
intrauterine device?
(a) release of eggs
(b) entering of sperms
(c) maturation of eggs
(d) implantation of embryo 1
2 One Shot Science Class X
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