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Which pigment is absent in each photosystem?

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in Biology – Class 11 by (272k points)
Which pigment is absent in each photosystem?

(a) One molecule of chlorophyll a

(b) Two molecules of chlorophyll b

(c) One molecule of chlorophyll b

(d) One molecule of xanthophyll

This question was addressed to me in unit test.

Origin of the question is Higher Plants Photosynthesis in chapter Photosynthesis in Higher Plants of Biology – Class 11

1 Answer

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Correct choice is (a) One molecule of chlorophyll a

Easy explanation: One molecule of chlorophyll a is absent in each photosystem forming a light-harvesting system also known as the antenna. These pigments make photosynthesis more efficient. The reaction center is formed by this one molecule of chlorophyll a.

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