Question

Difference b/w chlorophyll a and chlorophyll b

Answer 1

1. Chlorophyll a is the primary photosynthetic pigment while chlorophyll b is the accessory pigment that collects energy and passes it on to chlorophyll a. ... Chlorophyll a absorbs energy from wavelengths of blue-violet and orange-red light while chlorophyll b absorbs energy from wavelengths of green light.

Answer 2

The difference between the chlorophyll a and chlorophyll b is the presence of aldehyde group in place of the methyl group in chlorophyll b which changes the absorption wavelength of both the pigments.

So, the correct option is 'CH3  of chlorophyll a is replaced by −CHO in chlorophyll b.