Which pigment acts directly to convert light energy to chemical energy?

Options

A. Chlorophyll a
B. Chlorophyll b
C. Xanthophyll
D. Carotenoid

Answer

A

Explanation

Chlorophyll a is termed as universal photosynthetic pigment bacteria. It is also called primary photosynthetic pigment because it performs primary reaction of phosynthesis which involves conversion of light into chemical energy. Other photosynthetic pigments chlorphll b and carotenoids. (carotenes and xanthophylls) are called accessory pigments, as they absorb light energy of different wavelengths, broaden the spectrum of light absorpiton and hand over the energy to chlorophyll a through electron spin resonance.