Question

is a photoreceptive pigment and is directly involved in trapping the light energy
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Answer 1

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Chlorophyll a is the primary photosynthetic pigment. ... Chlorophyll a is directly involved in light reaction of photosynthesis. It is present in the reaction centres of Photosystem I and Photosystem II which absorbs light energy of longer wavelength. These centres can release electron upon absorption of energy.