Question

Which of these is not an effect of water stress?

(a) Closing of stomata

(b) Increase in metabolism

(c) Wilting of leaves

(d) Reduction in surface area of leaves

This question was posed to me in an online interview.

Question is from Factors Affecting Photosynthesis topic in section Photosynthesis in Higher Plants of Biology – Class 11

Answer 1

The correct choice is (b) Increase in metabolism

For explanation: When there is a water stress, its effects can be seen on the plant. Water stress closes stomata hence carbon dioxide availability reduces. The leaves wilt to reduce surface area and metabolism.