Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Which of the following is correct about the factor and its effect on the rate of photosynthesis?
A
Wilting of leaves under water stress conditions increases metabolic activity, thus increasing the rate of photosynthesis.
B
In water stress conditions, 
availability increases.
availability increases. C
At low light intensities, the incident light and 
fixation rate shows a linear relationship.
fixation rate shows a linear relationship. D
Plants show the highest rate of photosynthesis when light intensity reaches 20 percent of full sunlight.
Text Solution
Verified by ExpertsThe correct answer is:
C
Water stress makes leaves wilt, thus, reducing the surface area of the leaves and their metabolic activity as well. Light saturation occurs at 10 per cent of the full sunlight. Water stress causes the stomata to close hence reducing the 
availability.
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