First slide

Factors affecting Photosynthesis

Question

In $C_{3}$ plants, increase in incident light beyond saturation point result in:

Easy

A

Increased photosynthesis
B

Decreased photosynthesis
C

Enhanced chlorophyll activity
D

Enhanced enzymatic activity

Solution

Beyond saturation point, the rate of photosynthesis begins to decline because of solarization.
During solarization reduction in hydration and closure of stomata, oxidation of photosynthetic pigments and enzymes, and photorespiration takes place.

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