Photosynthesis In Higher Plants Question 170

Question: Which of the following would happen if the supply of $ O_2 $ is decreased to an illuminated wheat plant

Options:

A) Its photosynthesis would decrease

B) Its respiration would increase

C) Its photosynthesis would increase

D) All the physiological process would stop

Show Answer

Answer:

Correct Answer: C

Solution:

If the amount of oxygen in the atmosphere decreases then photosynthesis will increase in $ C_3 $ cycle (wheat) and no change in $ C_4 $ cycle.