Question

The chloroplasts of plant cells contain the primary pigment chlorophyll a. They also contain other pigments such as chlorophyll b and the carotenoids. What is the purpose of these other pigments?

• A. To excite electrons
• B. To produce ATP
• C. To produce glucose
• D. To absorb water
• E. To absorb different wavelengths of light

Answer 1

The correct option is E To absorb different wavelengths of light

Chlorophyll-b and carotenoids are known as the accessory pigments. The function of these pigments is to absorb light in the mid-region of the visible spectrum. These are known as accessory pigments because the light absorbed by them is transferred to chlorophyll-a (the reaction centre) for photosynthesis.

So, the correct answer is option E.