Saturday, April 20, 2019

WBCS Polity and Constitution MCQs Prelims and Mains

WBCS Previous Years Questions on General Science (Biology) P19


Biology 19

91. During photosynthesis,
(A) Light energy is stored as potential chemical energy in the food (glucose).
(B) The stored potential chemical energy of food is released as heat energy and other forms of energy.
(C) Presence of oxygen is essential.
(D) The catabolic reaction takes place

Correct Answer: [A] Light energy is stored as potential chemical energy in the food (glucose)..
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92. The number of amino acids occurring in nature is
(A) 30
(B) 40
(C) 10
(D) 20

Correct Answer: [D] 20.
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93. Which one of the following is not an autotroph?
(A) Fungus
(B) Fern
(C) Grass
(D) Green Algae

Correct Answer: [A] Fungus.
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94. In the present concept of evolution, the unit of evolution is
(A) Population
(B) Species
(C) Individual
(D) Families

Correct Answer: [B] Species.
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95. The amount of blood in the blood circulatory system a man is
(A) Five liters
(B) Ten liters
(C) One Liter
(D) Two liters

Correct Answer: [A] Five liters.
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