alleryMaximum absorption of light by chlorophyll a is in the
ABlue and red regions of light
BGreen and yellow regions of light
CUltraviolet and infrared regions
DYellow and orange regions
Answer & Solution
Correct answer: A. Blue and red regions of light
Chlorophyll a shows two absorption peaks: about 430 nm (blue) and 660 nm (red).
The action spectrum of photosynthesis matches this closely, confirming chl a as the chief pigment.
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