Rate of transpiration is high in

A. C₃ plants

B. C₄ plants

C. CAM plants

D. Both A and B

Answer: Option A

Solution(By Examveda Team)

Rate of transpiration is high in C₃ plants.
C₃ plants lose up to 97% of the water taken up through their roots by transpiration. In dry areas, C₃ plants shut their stomata to reduce water loss, but this stops CO₂ from entering the leaves and therefore reduces the concentration of CO₂ in the leaves.
Recent research has shown that many C₃ plant species have significant stomatal openings and transpire water at night even in desert habitats.