general science

Biology MCQ Questions and Answers Page - 9

1.

The process through which excess of light energy is dissipated in photosynthesis is known as

Answer/ Hint      

Answer : A

Explanation :

2.

Wilting of plants occurs due to excessive  :

Answer/ Hint      

Answer : D

Explanation :

3.

The nutritive tissue in the seeds of higher plants is known as

Answer/ Hint      

Answer : C

Explanation :

4.

Name the tiny pores present on the surface of leaves in plants.

Answer/ Hint      

Answer : B

Explanation :

5.

Phototropic movement is controlled by

Answer/ Hint      

Answer : A

Explanation :

6.

Chlorophyll containing autotrophic thallophytes is called as

Answer/ Hint      

Answer : A

Explanation :

7.

‘Table sugar’ is which type of sugar  ?

Answer/ Hint      

Answer : D

Explanation :

8.

Hydroponics is a method of culture of plants without using

Answer/ Hint      

Answer : D

Explanation :

9.

The non-green heterotrophic plants of plant kingdom are

Answer/ Hint      

Answer : D

Explanation :

10.

Self pollination will lead to

Answer/ Hint      

Answer : A

Explanation :

11.

The deciduous trees will

Answer/ Hint      

Answer : A

Explanation :

12.

Flowers emit fragrance to  :

Answer/ Hint      

Answer : C

Explanation :

13.

Haemoglobin in the blood is a complex protein rich in

Answer/ Hint      

Answer : A

Explanation :

14.

Vitamin C is also known as

Answer/ Hint      

Answer : B

Explanation :

15.

Which of the following is not a stem modification  ?

Answer/ Hint      

Answer : C

Explanation :

16.

The type of fruit obtained from a multicarpillary, apocarpous gynoecium is  :

Answer/ Hint      

Answer : B

Explanation :

17.

Where does the cabbage store food  ?

Answer/ Hint      

Answer : A

Explanation :

18.

The first stable product of photosynthesis is

Answer/ Hint      

Answer : C

Explanation :

19.

The plants which grow well, only in light are known as

Answer/ Hint      

Answer : C

Explanation :

20.

When we touch leaves of  “Touch me not plant”,  they close, these movements are called

Answer/ Hint      

Answer : C

Explanation :

21.

The concept of tissue culture was introduced by

Answer/ Hint      

Answer : C

Explanation :

22.

Translocation of water is

Answer/ Hint      

Answer : C

Explanation :

23.

The kidney shaped guard cells are present in

Answer/ Hint      

Answer : A

Explanation :

24.

Dumb-bell shaped guard cells are present in

Answer/ Hint      

Answer : B

Explanation :

25.

Stomatal opening is based on

Answer/ Hint      

Answer : B

Explanation :

26.

The cuticle is absent in

Answer/ Hint      

Answer : C

Explanation :

27.

Movement of hairs in Drosera is referred to as

Answer/ Hint      

Answer : B

Explanation :

28.

Solitary cymose inflorescence is observed in

Answer/ Hint      

Answer : D

Explanation :

29.

The special modified epidermal cells surrounding stomatal pore are called

Answer/ Hint      

Answer : B

Explanation :

30.

Transpiration through leaves is called as

Answer/ Hint      

Answer : B

Explanation :

31.

Process through which plants reproduce

Answer/ Hint      

Answer : A

Explanation :

32.

Water of coconut is

Answer/ Hint      

Answer : D

Explanation :

33.

Bulbils takes part in

Answer/ Hint      

Answer : B

Explanation :

34.

Stem is usually

Answer/ Hint      

Answer : A

Explanation :

35.

Root Hairs arise from

Answer/ Hint      

Answer : C

Explanation :

36.

The best example of Polyembryony is

Answer/ Hint      

Answer : C

Explanation :

37.

Glucose is a type of

Answer/ Hint      

Answer : B

Explanation :

38.

Which fruit has its seed outside  ?

Answer/ Hint      

Answer : A

Explanation :

39.

Which one of the following is not a photosynthetic pigment  ?

Answer/ Hint      

Answer : D

Explanation :

40.

The cells which are closely associated and interacting with guard cells are

Answer/ Hint      

Answer : C

Explanation :

41.

The main function of palisade parenchyma in leaf is

Answer/ Hint      

Answer : D

Explanation :

42.

Lungs of a plant are

Answer/ Hint      

Answer : A

Explanation :

43.

A clone is a group of individuals obtained through

Answer/ Hint      

Answer : B

Explanation :

44.

Red rot of sugarcane is caused by  :

Answer/ Hint      

Answer : C

Explanation :

45.

The fleshy thalamus is edible in

Answer/ Hint      

Answer : A

Explanation :

46.

Photoperiodism affects

Answer/ Hint      

Answer : A

Explanation :

47.

Which of the following plant shows chloroplast dimorphism  ?

Answer/ Hint      

Answer : D

Explanation :

48.

The substrate of Photorespiration is  :

Answer/ Hint      

Answer : C

Explanation :

49.

Linseed is obtained from

Answer/ Hint      

Answer : B

Explanation :

50.

Soilless agriculture refers to

Answer/ Hint      

Answer : A

Explanation :

51.

Which organ of the body never rests  ?

Answer/ Hint      

Answer : D

Explanation :

52.

In which part of the eye lies the pigment that decides the colour of the eyes of a person  ?

Answer/ Hint      

Answer : C

Explanation :

53.

Which of the following is most important for growth of children upto the age of 14  ?

Answer/ Hint      

Answer : A

Explanation :

54.

The scientist who explained about blood circulation for the first time was

Answer/ Hint      

Answer : B

Explanation :

55.

Which one of the following is not a digestive enzyme  ?

Answer/ Hint      

Answer : C

Explanation :

56.

In a human body, the longest bone is in the

Answer/ Hint      

Answer : B

Explanation :

57.

Which of the following food-crops has the maximum content of proteins  ?

Answer/ Hint      

Answer : B

Explanation :

58.

The total number of vertebrae in a human being is

Answer/ Hint      

Answer : D

Explanation :

59.

On the average, what percentage of human body has the element of oxygen  ?

Answer/ Hint      

Answer : A

Explanation :

60.

Yawning occurs –

Answer/ Hint      

Answer : A

Explanation :

61.

Which vitamin helps in blood coagulation  ?

Answer/ Hint      

Answer : C

Explanation :

62.

Which of the following is an abnormal constituent of urine  ?

Answer/ Hint      

Answer : D

Explanation :

63.

The metal present in insulin is

Answer/ Hint      

Answer : C

Explanation :

64.

Which of the following is a rich source of Vitamin B – 12  ?

Answer/ Hint      

Answer : B

Explanation :

65.

Out of the following glands which is referred to as the master gland  ?

Answer/ Hint      

Answer : C

Explanation :

66.

Carbohydrate is stored in the body as

Answer/ Hint      

Answer : C

Explanation :

67.

Which was the first enzyme isolated in pure crystalline form  ?

Answer/ Hint      

Answer : D

Explanation :

68.

Process of digestion is helped by

Answer/ Hint      

Answer : A

Explanation :

69.

Which is the organ that excretes water, fat and various catabolic wastes  ?

Answer/ Hint      

Answer : A

Explanation :

70.

Excretory products of mammalian embryo are eliminated out by

Answer/ Hint      

Answer : A

Explanation :

71.

What part of the eye gets inflamed and becomes pink when dust gets into  ?

Answer/ Hint      

Answer : C

Explanation :

72.

Milk is not considered a balanced diet now-a-days because of the absence of  :

Answer/ Hint      

Answer : B

Explanation :

73.

What is the approximate time required for a heart-beat  ?

Answer/ Hint      

Answer : B

Explanation :

74.

Two richest known sources of edible protein are

Answer/ Hint      

Answer : C

Explanation :

75.

Which of the following  is correlated with blood pressure  ?

Answer/ Hint      

Answer : D

Explanation :

76.

Which of the following structures present in mammalian skin directly helps in keeping the body warm  ?

Answer/ Hint      

Answer : D

Explanation :

77.

In the process of dialysis, used on patients with affected kidneys, the phenomenon involved is

Answer/ Hint      

Answer : C

Explanation :

78.

What is the normal blood sugar level of a human being  ?

Answer/ Hint      

Answer : B

Explanation :

79.

The blood cholesterol level in  100  ml of blood in a normal person varies between –

Answer/ Hint      

Answer : A

Explanation :

80.

The body temperature is regulated by –

Answer/ Hint      

Answer : B

Explanation :

81.

Respiration is

Answer/ Hint      

Answer : A

Explanation :

82.

Which of the following hormones is released in excess quantity during excitement  ?

Answer/ Hint      

Answer : C

Explanation :

83.

Which one of the following can be synthesized by Liver  ?

Answer/ Hint      

Answer : D

Explanation :

84.

Heart murmur indicates a

Answer/ Hint      

Answer : A

Explanation :

85.

Ripe grapes contain

Answer/ Hint      

Answer : A

Explanation :

86.

The science dealing with the study of teeth is

Answer/ Hint      

Answer : A

Explanation :

87.

The enzyme in whose presence glucose and fructose are converted into alcohol is

Answer/ Hint      

Answer : D

Explanation :

88.

The study of visceral organs is

Answer/ Hint      

Answer : D

Explanation :

89.

The enzyme that is present in the saliva of man is

Answer/ Hint      

Answer : C

Explanation :

90.

Study of newly born up to the age of 3 months is called

Answer/ Hint      

Answer : D

Explanation :

91.

Which one of the following does not secrete any digestive enzyme  ?

Answer/ Hint      

Answer : A

Explanation :

92.

The colour of human skin is produced by

Answer/ Hint      

Answer : D

Explanation :

93.

Which is the anti-coagulant substance in blood  ?

Answer/ Hint      

Answer : B

Explanation :

94.

The number of chambers in a human heart is

Answer/ Hint      

Answer : A

Explanation :

95.

How many bones are there in the human body  ?

Answer/ Hint      

Answer : C

Explanation :

96.

Sweat glands in mammals are primarily concerned with

Answer/ Hint      

Answer : C

Explanation :

97.

The normal  RBC  count in adult male is

Answer/ Hint      

Answer : B

Explanation :

98.

Which of the following is the sweetest sugar  ?

Answer/ Hint      

Answer : C

Explanation :

99.

Blood pressure is controlled by

Answer/ Hint      

Answer : A

Explanation :

100.

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

Answer/ Hint      

Answer : A

Explanation :

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