A comparison of absorption and action spectra shows a discrepancy in the blue-violet region. Which pigment is primarily responsible for broadening the action spectrum here?
Q1. A comparison of absorption and action spectra shows a discrepancy in the blue-violet region. Which pigment is primarily responsible for broadening the action spectrum here?
Answer: Chlorophyll b
Explanation: Chlorophyll b absorbs light at wavelengths (blue/orange) that chlorophyll a does not, broadening the range of usable light for photosynthesis.