Crassulacean Acid Metabolism is an Adaptation to Dry Conditions Because

Question

Crassulacean acid metabolism is an adaptation to dry conditions because CAM plants
A)open their stomata at night to minimize water loss.
B)open their flowers only at night.
C)produce unusually large amounts of abscisic acid.
D)photosynthesize only during the rainy season.

Accepted Answer

CAM plants open their stomata at night to minimize water loss because during the day, when stomata are open, they lose water through transpiration as a result of photosynthesis. By opening their stomata at night, CAM plants are able to take in carbon dioxide while minimizing water loss.