Photorespiration is characteristic of

A. C₃ plants

B. C₄ plants

C. CAM plants

D. All of these

Answer: Option A

Solution(By Examveda Team)

Photorespiration is characteristic of C₃ plants.
Photorespiration happens in C₃ plants when the CO₂ concentration drops to about 50 ppm. The key enzyme that accomplishes the fixing of carbon is rubisco, and at low concentrations of CO₂, it begins to fix oxygen instead.