general science

Biology MCQ Questions and Answers Page - 7

1.

The pollination of maize takes place by

Answer/ Hint      

Answer : C

Explanation :

2.

The pollen grains of flowers pollinated by insects are  :

Answer/ Hint      

Answer : B

Explanation :

3.

Which one of the following substances is used for preservation of food grains  ?

Answer/ Hint      

Answer : A

Explanation :

4.

The age of trees is determined by its  :

Answer/ Hint      

Answer : C

Explanation :

5.

Fruits of this plant are found underground  :

Answer/ Hint      

Answer : C

Explanation :

6.

Clove, the commonly used spice, is obtained from the  :

Answer/ Hint      

Answer : C

Explanation :

7.

Maximum photosynthetic activity occurs in  :

Answer/ Hint      

Answer : A

Explanation :

8.

All the progeny obtained from a single plant by vegetative propagation are called

Answer/ Hint      

Answer : A

Explanation :

9.

Oxygen liberated during photosynthesis is coming from  :

Answer/ Hint      

Answer : B

Explanation :

10.

During photosynthesis the liberated gas is  :

Answer/ Hint      

Answer : B

Explanation :

11.

Water in plants is trans-ported by

Answer/ Hint      

Answer : D

Explanation :

12.

Hashish is obtained from a plant. From which part of the plant is it obtained  ?

Answer/ Hint      

Answer : C

Explanation :

13.

Which of the following is  not  required for seed germination  ?

Answer/ Hint      

Answer : C

Explanation :

14.

A plant with compound leaves is

Answer/ Hint      

Answer : B

Explanation :

15.

‘Darwin finches’ refer to a group of  :

Answer/ Hint      

Answer : C

Explanation :

16.

Which components of light are absorbed by chlorophyll  ?

Answer/ Hint      

Answer : A

Explanation :

17.

Ginger is a stem and not a root because

Answer/ Hint      

Answer : C

Explanation :

18.

Eyes potato are useful for

Answer/ Hint      

Answer : D

Explanation :

19.

Which of the following is not a component of chlorophyll  ?

Answer/ Hint      

Answer : D

Explanation :

20.

Carrot is orange in colour because

Answer/ Hint      

Answer : C

Explanation :

21.

The seeds of certain plants fall to germinate if they do not pass through the digestive tract of fruit-eating birds. This is due to

Answer/ Hint      

Answer : B

Explanation :

22.

Sucrose content in sugarcane decreases

Answer/ Hint      

Answer : B

Explanation :

23.

Through ‘Photo synthesis’ green plants generate

Answer/ Hint      

Answer : C

Explanation :

24.

Lac is produced from

Answer/ Hint      

Answer : B

Explanation :

25.

Which one of the following is not a plant product  ?

Answer/ Hint      

Answer : D

Explanation :

26.

Maximum harm to a tree is caused by

Answer/ Hint      

Answer : B

Explanation :

27.

Mineral constituent of chlorophyll is

Answer/ Hint      

Answer : B

Explanation :

28.

The chemicals released by one species of animals in order to attract the other members of the same species are

Answer/ Hint      

Answer : C

Explanation :

29.

Cereals are a rich source of

Answer/ Hint      

Answer : A

Explanation :

30.

Respiration process requires 

Answer/ Hint      

Answer : C

Explanation :

31.

Which of the following statements is true  ?

Answer/ Hint      

Answer : B

Explanation :

32.

In coriander, the useful parts are

Answer/ Hint      

Answer : C

Explanation :

33.

Which plant is called  ‘Herbal Indian Doctor’  ?

Answer/ Hint      

Answer : A

Explanation :

34.

Bark of this tree is used as a condiment –

Answer/ Hint      

Answer : A

Explanation :

35.

An example of false fruit is

Answer/ Hint      

Answer : A

Explanation :

36.

A large number of identical plants can be obtained in a short span of time through

Answer/ Hint      

Answer : C

Explanation :

37.

The edible part of Cabbage is

Answer/ Hint      

Answer : C

Explanation :

38.

Which of the following processes are associated with plants during dark period  ?

Answer/ Hint      

Answer : D

Explanation :

39.

The green colour of the leaves is due to the presence of

Answer/ Hint      

Answer : C

Explanation :

40.

The edible part of an onion is

Answer/ Hint      

Answer : D

Explanation :

41.

An inset – catching plant is  :

Answer/ Hint      

Answer : C

Explanation :

42.

The presence of air cavities is an adaptation of

Answer/ Hint      

Answer : C

Explanation :

43.

The pigment involved in photosynthetic activity is

Answer/ Hint      

Answer : D

Explanation :

44.

Vegetable oils are converted into solid fat (ghee) by

Answer/ Hint      

Answer : D

Explanation :

45.

Maximum harm to a tree is caused by

Answer/ Hint      

Answer : B

Explanation :

46.

Bakeries use yeast in breadmaking because it

Answer/ Hint      

Answer : B

Explanation :

47.

Plants get water through the roots because of –

Answer/ Hint      

Answer : B

Explanation :

48.

The method used to obtain alcohol from molasses is called

Answer/ Hint      

Answer : C

Explanation :

49.

The floral part that produces pollen grains is

Answer/ Hint      

Answer : C

Explanation :

50.

Which of these fruits develop from an inflorescence  ?

Answer/ Hint      

Answer : C

Explanation :

51.

A person having blood type B could safely donate blood to persons with blood types

Answer/ Hint      

Answer : D

Explanation :

52.

The central control of respiratory activity in human body is exercised by

Answer/ Hint      

Answer : C

Explanation :

53.

A person of blood group  AB  can receive blood from a person of

Answer/ Hint      

Answer : D

Explanation :

54.

The strongest bone of the body is present in the

Answer/ Hint      

Answer : B

Explanation :

55.

The red blood cells are produced by the

Answer/ Hint      

Answer : C

Explanation :

56.

Which of the following stores glycogen  ?

Answer/ Hint      

Answer : D

Explanation :

57.

The function of Haemoglobin is to  :

Answer/ Hint      

Answer : B

Explanation :

58.

Metal present in blood is

Answer/ Hint      

Answer : D

Explanation :

59.

Butter is

Answer/ Hint      

Answer : B

Explanation :

60.

Honey contains mainly

Answer/ Hint      

Answer : B

Explanation :

61.

The membrane covering the lungs is a

Answer/ Hint      

Answer : A

Explanation :

62.

An adult human normally has

Answer/ Hint      

Answer : D

Explanation :

63.

The blood vessel carrying blood from the lungs to the heart is

Answer/ Hint      

Answer : C

Explanation :

64.

Food for the developing foetus is supplied by the

Answer/ Hint      

Answer : B

Explanation :

65.

The importance of perspiration is to

Answer/ Hint      

Answer : D

Explanation :

66.

The biological death of a patient means the death of tissues of the

Answer/ Hint      

Answer : C

Explanation :

67.

Blood pressure is high in the

Answer/ Hint      

Answer : B

Explanation :

68.

Estrogen and Progesterone control and stimulate the growth in  :

Answer/ Hint      

Answer : C

Explanation :

69.

Which of the following is a Vitamin  ?

Answer/ Hint      

Answer : B

Explanation :

70.

Persons who re colour-blind cannot distinguish between

Answer/ Hint      

Answer : C

Explanation :

71.

The acid present in gastric juice is

Answer/ Hint      

Answer : A

Explanation :

72.

Which of the following is the hardest substance in the human body  ?

Answer/ Hint      

Answer : B

Explanation :

73.

Universal donors are people with the blood group

Answer/ Hint      

Answer : C

Explanation :

74.

The blood vessel which carries oxygenated blood to the liver is

Answer/ Hint      

Answer : D

Explanation :

75.

Which of the following cells secrete insulin  ?

Answer/ Hint      

Answer : D

Explanation :

76.

In the human body, fats are stored in the

Answer/ Hint      

Answer : B

Explanation :

77.

Blood does not clot in the blood vessels due to the presence of

Answer/ Hint      

Answer : A

Explanation :

78.

The blood vessel supplying blood to the kidney is

Answer/ Hint      

Answer : A

Explanation :

79.

The organ which stores carbohydrates as glycogen in the human body is

Answer/ Hint      

Answer : D

Explanation :

80.

Haemoglobin is an important constituent of

Answer/ Hint      

Answer : A

Explanation :

81.

Blood pressure is the pressure exerted by blood on the walls of

Answer/ Hint      

Answer : C

Explanation :

82.

Bile is produced by the

Answer/ Hint      

Answer : A

Explanation :

83.

Which part of the nervous system controls the activities of internal organs  ?

Answer/ Hint      

Answer : D

Explanation :

84.

When the Left Ventricle in the human heart contracts, the blood moves to the

Answer/ Hint      

Answer : C

Explanation :

85.

Reflex actions are controlled by

Answer/ Hint      

Answer : B

Explanation :

86.

The following sugar gives energy most readily

Answer/ Hint      

Answer : D

Explanation :

87.

Which of these joints is a Hinge joint  ?

Answer/ Hint      

Answer : B

Explanation :

88.

The saliva secreted in the mouth digests

Answer/ Hint      

Answer : B

Explanation :

89.

Where is the Pineal Gland situated  ?

Answer/ Hint      

Answer : B

Explanation :

90.

The human heart is enclosed in the

Answer/ Hint      

Answer : A

Explanation :

91.

The human skeleton contains around

Answer/ Hint      

Answer : B

Explanation :

92.

The pigment which gives colour to the human skin is

Answer/ Hint      

Answer : A

Explanation :

93.

The function of Trypsin is to

Answer/ Hint      

Answer : C

Explanation :

94.

Which are not included in the milk-teeth in a child of 3-4 years  ?

Answer/ Hint      

Answer : C

Explanation :

95.

What determines the sex of a child  ?

Answer/ Hint      

Answer : A

Explanation :

96.

The primary source of carbohydrates are

Answer/ Hint      

Answer : B

Explanation :

97.

What does enamel cover  ?

Answer/ Hint      

Answer : A

Explanation :

98.

Drying oils contain a fairly large proportion of

Answer/ Hint      

Answer : D

Explanation :

99.

Which one of the following organs excretes water, fat and various catabolic wastes  ?

Answer/ Hint      

Answer : A

Explanation :

100.

Which one of the following is the ideal food for newborn babies  ?

Answer/ Hint      

Answer : D

Explanation :

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