Botany-Light Reaction
NEET Botany Light Reaction MCQ Question
Type: MCQ-numerical-Hard-Class 11
In the light reaction of photosynthesis, how does the presence of accessory pigments like xanthophylls and carotenoids enhance photosynthesis efficiency?
A
By expanding the range of light wavelengths absorbed.
B
By increasing the amount of CO2 fixed in the Calvin cycle.
C
By directly converting light energy into ATP.
D
By reducing the oxygen released during photolysis.
Correct Answer
Option A
Detailed Explanation
Accessory pigments like xanthophylls and carotenoids absorb light at different wavelengths than chlorophyll a, allowing plants to utilize a broader spectrum of light for photosynthesis, thereby increasing efficiency.
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