A botanist exposes a plant to monochromatic red light of 680nm. Which pigment is primarily responsible for capturing this specific energy?
Q1. A botanist exposes a plant to monochromatic red light of 680nm. Which pigment is primarily responsible for capturing this specific energy?
Answer: Chlorophyll a
Explanation: Chlorophyll a is the main pigment absorbing red light; carotenoids are tempting but they primarily absorb blue-violet wavelengths instead.