These Photosynthesis MCQ pdf download focuses on the anatomy of the photosynthetic hardware and the different responses that change light energy into chemical energy. Let us discuss about some important Photosynthesis in Higher Plants MCQs and Answers.
Photosynthesis MCQ pdf Download
1 In which of the following process, the light energy is converted into chemical energy
(A)
Digestive action
(B)
Respiration
(C)
Photosynthesis
(D)
Fermentation
2 Fixation of one CO2 molecule through Calvin cycle requires:
(A) 1 ATP and 2NADPH2
(B) 2ATP and 2NADPH2
(C) 3ATP and 2NADPH2
(D) 2ATP and 1NADPH2
3 Algae and other submerged plants bount in water during day time and sink at night, because
(A) They come upto enjoy some time
(B) They lose weight at night
(C) They become bouyant due to accumulation of O2 as a result of photosynthesis
(D) They become light due to food material accumulation
Answer: They become bouyant due to accumulation of O2 as a result of photosynthesis
4 Structurally, chlorophyll a and b are different as
(A) Chl a has a methyl group and Chl b has an aldehyde group
(B) Chl a has an aldehyde group and Chl b has a methyl group
(C) Chl a has an ethyl group and Chl b has an aldehyde group
(D) Chl a has a carboxyl group and Chl b has an aldehyde group
Answer:Chl a has a methyl group and Chl b has an aldehyde group
5 Chlorophyll in chloroplasts is located in
(A) Grana
(B) Pyrenoid
(C) Stroma
(D) Both grana and stroma
6 Photosynthesis is most active in
(A) Sun light
(B) Yellow light
(C) Red light
(D) Green light
7 The specific characteristic of C4-plants is:
(A) bulliform cells
(B) isobilateral leaf
(C) kranz anatomy
(D) parallel veins configuration
8 In the half-leaf experiment of photosynthesis, KOH solution is used because
(A) It provides O2 to the leaf
(B) It provides moisture to the leaf
(C) It helps in CO2 fixation
(D) It absorbs CO2
9 Which one occurs both during cyclic and noncyclic modes of photophosphorylation?
(A) Involvement of both PS I and PS II
(B) Formation of ATP
(C) Release of O2
(D) Formation of NADPH
10 It is only the green part of the plant, which takes part in
(A) Respiration
(B) Transpiration
(C) Photosynthesis
(D) Osmosis
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