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The pigments other than chlorophyll a that absorb light and pass the energy to it are called

(a) electron carriers Your answer
(b) photosystems Your answer
(c) reaction centres Your answer
(d) accessory pigments Correct

Your answer: Correct answer: (d)

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Explanation

Why (d) is correct

Chlorophyll b, xanthophylls and carotenoids absorb light and pass the energy to chlorophyll a; they are called accessory pigments.

Why the other options are wrong

(a) · your answer Electron carriers transfer electrons, not absorbed light energy.
(b) · your answer A photosystem is a whole complex (reaction centre and antenna), not a type of pigment.
(c) · your answer The reaction centre is chlorophyll a itself, which receives the energy.

NCERT point: Accessory pigments widen the range of wavelengths used and protect chlorophyll a from photo-oxidation.

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