Practice Biology photosynthesis - general science mcq Online Quiz (set-1) For All Competitive Exams
Q-1) What rays of sunlight are mostly utilized by chlorophyll in photosynthesis?
(a)
(b)
(c)
(d)
Q-2) Which light is most effective in photosynthesis?
(a)
(b)
(c)
(d)
Q-3) Which of the following has the maximum efficiency to convert solar energy into chemical energy?
(a)
(b)
(c)
(d)
Q-4) Photosynthesis occurs in
(a)
(b)
(c)
(d)
Q-5) Photosynthesis occurs in
(a)
(b)
(c)
(d)
Q-6) Light energy changes into the chemical energy by which of the following process?
(a)
(b)
(c)
(d)
Q-7) The most active light for photosynthesis is
(a)
(b)
(c)
(d)
Q-8) The process by which plants synthesize their food is called
(a)
(b)
(c)
(d)
Q-9) Most of the oxygen on earth is produced by
(a)
(b)
(c)
(d)
Q-10) The process by which plants produce food is called
(a)
(b)
(c)
(d)
Q-11) Which one of the following does not increase the amount of carbon dioxide in carbon cycle on earth?
(a)
(b)
(c)
(d)
Q-12) Which one of the following gases is used by plants in photosynthesis?
(a)
(b)
(c)
(d)
Q-13) Which one of the following gases is essential for photosynthesis process?
(a)
(b)
(c)
(d)
Q-14) Which of the following types of light are strongly absorbed by plants?
(a)
(b)
(c)
(d)
Q-15) Which of the following is not the work of roots?
(a)
(b)
(c)
(d)
Q-16) Oxygen, which is liberated during photosynthesis comes from
(a)
(b)
(c)
(d)
Q-17) ‘Phloem’ in plants is mainly responsible for
(a)
(b)
(c)
(d)
Q-18) Artificial light can
(a)
(b)
(c)
(d)
Q-19) It happens during the photosynthesis in green plants
(a)
(b)
(c)
(d)
Q-20) When the bark of a tree is removed in a circular fashion all around near its base, it gradually dries up or dries because
(a)
(b)
(c)
(d)