general science

Biology MCQ Questions and Answers Page - 8

1.

The part of the flower that can carry out photosynthesis is

Answer/ Hint      

Answer : C

Explanation :

2.

Ginger is a modified

Answer/ Hint      

Answer : D

Explanation :

3.

The from of carbohydrate which is synthesised in plants is

Answer/ Hint      

Answer : B

Explanation :

4.

Pulses are a good source of

Answer/ Hint      

Answer : C

Explanation :

5.

In onion food is stored in

Answer/ Hint      

Answer : C

Explanation :

6.

The reagent used to test the presence of starch in leaves is

Answer/ Hint      

Answer : B

Explanation :

7.

Which of the following provides energy for photosynthesis  ?

Answer/ Hint      

Answer : B

Explanation :

8.

A disease caused by fungus is

Answer/ Hint      

Answer : B

Explanation :

9.

Carrot is a rich source of vitamin

Answer/ Hint      

Answer : A

Explanation :

10.

Which of the following has Vitamin C  ?

Answer/ Hint      

Answer : A

Explanation :

11.

Plants release energy during

Answer/ Hint      

Answer : B

Explanation :

12.

From which part of a plant is turmeric obtained  ?

Answer/ Hint      

Answer : B

Explanation :

13.

The floral part that receives pollen-grains during pollination is

Answer/ Hint      

Answer : C

Explanation :

14.

Which of these is a micronutrient for plants  ?

Answer/ Hint      

Answer : D

Explanation :

15.

An edible underground stem is

Answer/ Hint      

Answer : A

Explanation :

16.

Which of these is a modified underground stem  ?

Answer/ Hint      

Answer : D

Explanation :

17.

To carry out photosynthesis plants require

Answer/ Hint      

Answer : B

Explanation :

18.

Root nodules are commonly found in  :

Answer/ Hint      

Answer : C

Explanation :

19.

Opium is a plant product obtained from

Answer/ Hint      

Answer : B

Explanation :

20.

Quinine, the commonly used drug to treat malaria, is obtained from a plant. What part of the plant yields the drug  ?

Answer/ Hint      

Answer : D

Explanation :

21.

Cuscuta is a

Answer/ Hint      

Answer : B

Explanation :

22.

Which of the following processes does  NOT  increases the amount of carbon dioxide in air  ?

Answer/ Hint      

Answer : B

Explanation :

23.

A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed  ?

Answer/ Hint      

Answer : A

Explanation :

24.

In plants water is absorbed by the root hairs by a process called  :

Answer/ Hint      

Answer : D

Explanation :

25.

The element which is required by the plant in large quantity  :

Answer/ Hint      

Answer : B

Explanation :

26.

From the bark of which plant is quinine extracted  ?

Answer/ Hint      

Answer : B

Explanation :

27.

Yellow spots on citrus leaves is due to the deficiency of  :

Answer/ Hint      

Answer : B

Explanation :

28.

In onion the edible part is

Answer/ Hint      

Answer : A

Explanation :

29.

In cauliflower plant the useful part is  :

Answer/ Hint      

Answer : C

Explanation :

30.

‘Comose’  seeds are seeds with

Answer/ Hint      

Answer : A

Explanation :

31.

A seed can germinate in the absence of

Answer/ Hint      

Answer : A

Explanation :

32.

Excess amount of absorbed water by plants is liberated out by  :

Answer/ Hint      

Answer : D

Explanation :

33.

The only plant cells without nuclei among the following are  :

Answer/ Hint      

Answer : A

Explanation :

34.

Plants which flower only once in their life time are known as

Answer/ Hint      

Answer : B

Explanation :

35.

The most abundant enzyme in the living world is

Answer/ Hint      

Answer : A

Explanation :

36.

Iodine solution is used to test the presence of

Answer/ Hint      

Answer : C

Explanation :

37.

What is the impact of advancing glaciers on the rings of trees  ?

Answer/ Hint      

Answer : B

Explanation :

38.

Insectivorous plants grow in soil deficient in

Answer/ Hint      

Answer : B

Explanation :

39.

The red, orange and yellow colours of leaf is due to  :

Answer/ Hint      

Answer : D

Explanation :

40.

Select the High Yielding Varieties of seed-crops developed under Green Revolution in India.

Answer/ Hint      

Answer : A

Explanation :

41.

The sweet taste of fruits is due to

Answer/ Hint      

Answer : B

Explanation :

42.

Seed dormancy is regulated by

Answer/ Hint      

Answer : A

Explanation :

43.

Protein part of enzyme is know as

Answer/ Hint      

Answer : C

Explanation :

44.

Pick out the correct match  :

Answer/ Hint      

Answer : D

Explanation :

45.

The process of photosynthesis involves conversion of

Answer/ Hint      

Answer : C

Explanation :

46.

Activity of an enzyme can be modulated by change of

Answer/ Hint      

Answer : A

Explanation :

47.

A  plant with  30 cm  or more circumference from human chest height is identified as

Answer/ Hint      

Answer : C

Explanation :

48.

A molecule in plants comparable to haemoglobin in animals is

Answer/ Hint      

Answer : C

Explanation :

49.

Respiration is regarded as a

Answer/ Hint      

Answer : B

Explanation :

50.

Which of the following plant pigments absorbs in red and farred region of light  ?

Answer/ Hint      

Answer : C

Explanation :

51.

Which of the part of tongue bears cells for sour taste  ?

Answer/ Hint      

Answer : C

Explanation :

52.

The large amount of sugar present in human blood is

Answer/ Hint      

Answer : B

Explanation :

53.

If the radius of blood vessels of a person decreases  his/her  blood pressure will

Answer/ Hint      

Answer : A

Explanation :

54.

Besides carbohydrates, a major source of energy in our food is constituted by

Answer/ Hint      

Answer : B

Explanation :

55.

The colour of cow’s milk is slightly yellow due to the presence of

Answer/ Hint      

Answer : D

Explanation :

56.

The concentration of which of the following decreases in anaemia  ?

Answer/ Hint      

Answer : A

Explanation :

57.

A vitamin requires cobalt for its activity. The vitamin is

Answer/ Hint      

Answer : A

Explanation :

58.

What happens to a person who receives the wrong type of blood  ?

Answer/ Hint      

Answer : C

Explanation :

59.

Pituitary gland is situated in

Answer/ Hint      

Answer : B

Explanation :

60.

The brain of human adult weighs about

Answer/ Hint      

Answer : A

Explanation :

61.

The colour of the eye depends upon the pigment present in

Answer/ Hint      

Answer : B

Explanation :

62.

The ability of the eye to see in the dark, is due to the production of a purple pigment known as

Answer/ Hint      

Answer : D

Explanation :

63.

An instrument for measuring blood pressure is called

Answer/ Hint      

Answer : C

Explanation :

64.

The term  ‘Rh factor’  refers to

Answer/ Hint      

Answer : A

Explanation :

65.

Blood groups were discovered by

Answer/ Hint      

Answer : B

Explanation :

66.

The normal cholesterol level in human blood is

Answer/ Hint      

Answer : D

Explanation :

67.

The pH of human blood is

Answer/ Hint      

Answer : D

Explanation :

68.

Which amongst the following is largest endocrine gland in the body  ?

Answer/ Hint      

Answer : A

Explanation :

69.

Saliva helps in the digestion of  :

Answer/ Hint      

Answer : B

Explanation :

70.

The longest bone in the human body is  :

Answer/ Hint      

Answer : C

Explanation :

71.

Normal fasting blood sugar level per  100ml. of blood in man is

Answer/ Hint      

Answer : C

Explanation :

72.

Veins seen in the leaves, serve the function of

Answer/ Hint      

Answer : D

Explanation :

73.

Goitre is caused by the deficiency of

Answer/ Hint      

Answer : A

Explanation :

74.

The normal body temperature of human beings is

Answer/ Hint      

Answer : C

Explanation :

75.

Wisdom teeth is the  :

Answer/ Hint      

Answer : C

Explanation :

76.

Besides ear ossicles, the cavity of the middle ear in humans contains

Answer/ Hint      

Answer : A

Explanation :

77.

The percentage of water content in the human blood plasma normally varies from

Answer/ Hint      

Answer : D

Explanation :

78.

“Sodium Pump’ operates in

Answer/ Hint      

Answer : C

Explanation :

79.

The functions of pacemaker is

Answer/ Hint      

Answer : C

Explanation :

80.

The number of heart beats on an average in an adult human is in the range of

Answer/ Hint      

Answer : C

Explanation :

81.

The end product of the digestion of starch in the alimentary canal is –

Answer/ Hint      

Answer : A

Explanation :

82.

Which of the following does not provide any energy  ?

Answer/ Hint      

Answer : C

Explanation :

83.

Which enzyme converts proteins  ?

Answer/ Hint      

Answer : B

Explanation :

84.

Approximately how many times each day, do our heart valves open and close normally  ?

Answer/ Hint      

Answer : B

Explanation :

85.

Normal blood pressure of man is

Answer/ Hint      

Answer : A

Explanation :

86.

Which one of the following four secretions, is different from the remaining three in regard to its mode of transport from the source gland to the site of action  ?

Answer/ Hint      

Answer : C

Explanation :

87.

Haemoglobin is a

Answer/ Hint      

Answer : A

Explanation :

88.

The average heartbeat rate per minute in a normal person is

Answer/ Hint      

Answer : C

Explanation :

89.

Metabolism is referred to as

Answer/ Hint      

Answer : C

Explanation :

90.

The enzymes are basically

Answer/ Hint      

Answer : C

Explanation :

91.

Which one of the following foodstuffs of the same quantity possesses the highest calorific value  ?

Answer/ Hint      

Answer : A

Explanation :

92.

The colour of cow’s milk is slightly yellow due to the presence of

Answer/ Hint      

Answer : D

Explanation :

93.

The protein present in the finger nail is

Answer/ Hint      

Answer : D

Explanation :

94.

The carbon dioxide content in the air that we exhale is about

Answer/ Hint      

Answer : A

Explanation :

95.

The total number of ear bones is

Answer/ Hint      

Answer : C

Explanation :

96.

“Pace-maker”  is associated with

Answer/ Hint      

Answer : C

Explanation :

97.

It causes clotting of blood

Answer/ Hint      

Answer : A

Explanation :

98.

The vitamin which cannot be had from any vegetables is

Answer/ Hint      

Answer : C

Explanation :

99.

Which of the following is not a gland  ?

Answer/ Hint      

Answer : B

Explanation :

100.

What vessel carries the venous blood to the lungs for oxygenation  ?

Answer/ Hint      

Answer : A

Explanation :

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