Question

Which is false regarding chlorophyll a and b?

(a) Chlorophyll b is an accessory pigment

(b) Chlorophyll is the main chief pigment

(c) Chlorophyll a is more than chlorophyll b

(d) Both are present in equal proportion

This question was addressed to me in an interview for job.

This question is from Pigments Involved in Photosynthesis in section Photosynthesis in Higher Plants of Biology – Class 11

Answer 1

The correct answer is (d) Both are present in equal proportion

Explanation: In chloroplast, chlorophyll-a is more than chlorophyll b. They are not present in equal proportion. Since chlorophyll-a is the main chief pigment in photosynthesis, it is more in number. Chlorophyll b is less in number since it is only an accessory pigment.