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Chlorophyll a occurs in
Your answer:
Correct answer: (c)
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Explanation
Why (c) is correct
Chlorophyll a is the chief pigment of oxygenic photosynthesis. It is present in all organisms that split water and release oxygen: cyanobacteria, algae and all green plants.
Why the other options are wrong
- (a) · your answer Plants and fungi are not the right grouping; many non-plant organisms (cyanobacteria) have chlorophyll a, and parasitic plants may lack it.
- (b) · your answer Chlorophyll a is not limited to higher plants; algae and cyanobacteria also have it.
- (d) · your answer Photosynthetic bacteria other than cyanobacteria have bacteriochlorophylls, not chlorophyll a.
NCERT point: Chlorophyll a forms the reaction centres of both photosystems; other pigments only pass energy to it.
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