Which of the following statements best explains the ability of CAM plants to synthesize sugars in the daytime while keeping their stomata closed to reduce water loss? A) They fix CO₂ into organic acids during the night. B) They fix CO₂ into sugars in the bundle-sheath cells. C) They fix CO₂ into pyruvate in the mesophyll cells. D) They use photosystem I and photosystem II at night.

Question

Quizplus · Accepted Answer

CAM plants fix CO2 into organic acids during the night, storing it in vacuoles. During the day, these acids are converted back into CO2 for photosynthesis, allowing the plant to keep stomata closed and reduce water loss.

Which of the Following Statements Best Explains the Ability of CAM