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cell: the unit of life and living world

Total questions: 50

Worksheet time: 38mins

Name
Class
Date
1.
a)

A

b)

B

c)

C

d)

D

2.
a)

A

b)

B

c)

C

d)

D

3.
a)

A

b)

B

c)

C

d)

D

4.
a)

A

b)

B

c)

C

d)

D

5.
a)

A

b)

B

c)

C

d)

D

6.
a)

A

b)

B

c)

C

d)

D

7.
a)

A

b)

B

c)

C

d)

D

8.
a)

A

b)

B

c)

C

d)

D

9.
a)

A

b)

B

c)

C

d)

D

10.
a)

A

b)

B

c)

C

d)

D

11.
a)

A

b)

B

c)

C

d)

D

12.
a)

A

b)

B

c)

C

d)

D

13.
a)

A

b)

B

c)

C

d)

D

14.
a)

A

b)

B

c)

C

d)

D

15.
a)

A

b)

B

c)

C

d)

D

16.
a)

A

b)

B

c)

C

d)

D

17.
a)

A

b)

B

c)

C

d)

D

18.
a)

A

b)

B

c)

C

d)

D

19.
a)

A

b)

B

c)

C

d)

D

20.
a)

A

b)

B

c)

C

d)

D

21.
a)

A

b)

B

c)

C

d)

D

22.
a)

A

b)

B

c)

C

d)

D

23.
a)

A

b)

B

c)

C

d)

D

24.
a)

A

b)

B

c)

C

d)

D

25.
a)

(a)

b)

(b)

c)

(c)

d)

(d)

26.
a)

A

b)

B

c)

C

d)

D

27.
a)

A

b)

B

c)

C

d)

D

28.

Assertion- Lipids are arranged within the cell membrane with their hydrophobic tails towards the inner part

Reason- This ensures that nonpolar tail of saturated hydrocarbons is protected from aqueous environment.

a)

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

b)

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

c)

Assertion is correct but Reason is incorrect.

d)

Both Assertion and Reason are incorrect.

29.

Statement I-  Centrioles are made up of microfilaments.

Statement II- Each microtubule is made of 13 parallel protofilaments. Each protofilament is made up of alpha and beta subunits of tubulin proteins.

a)

Statement I is correct while Statement II is false

b)

Statement I is false while Statement II is correct

c)

Both statements are correct

d)

Both statements are false

30.

Statement I-  Eukaryotic ribosomes are of 80S type having two subunits – 50S and 30S.

Statement II- Here ‘S’ (Svedberg’s Unit) stands for the sedimentation coefficient; it is indirectly a measure of density and size.

a)

Statement I is correct while Statement II is false

b)

Statement I is false while Statement II is correct

c)

Both statements are correct

d)

Both statements are false

31.
a)

A

b)

B

c)

C

d)

D

32.

In majority of higher animals and plants, growth and reproduction are _____events.

a)

Mutually exclusive

b)

mutually inclusive

c)

either a or b

d)

none

33.
a)

A

b)

B

c)

C

d)

D

34.
a)

A

b)

B

c)

C

d)

D

35.
a)

A

b)

B

c)

C

d)

D

36.
a)

A

b)

B

c)

C

d)

D

37.
a)

(a)

b)

(b)

c)

(c)

d)

(d)

38.
a)

(a)

b)

(b)

c)

(c)

d)

(d)

39.
a)

(a)

b)

(b)

c)

(c)

d)

(d)

40.
a)

(a)

b)

(b)

c)

(c)

d)

(d)

41.
a)

(a)

b)

(b)

c)

(c)

d)

(d)

42.
a)

(a)

b)

(b)

c)

(c)

d)

(d)

43.
a)

(a)

b)

(b)

c)

(c)

d)

(d)

44.
a)

A

b)

B

c)

C

d)

D

45.
a)

A

b)

B

c)

C

d)

D

46.
a)

1

b)

2

c)

3

d)

4

47.
a)

1

b)

2

c)

3

d)

4

48.
a)

1

b)

2

c)

3

d)

4

49.
a)

1

b)

2

c)

3

d)

4

50.
a)

1

b)

2

c)

3

d)

4