While C-4 plants have carbon dioxide fixation and carbon dioxide uptake separated by location within the plant, CAM plants
A) have these processes separated by time.
B) fix much greater amounts of carbon dioxide than C-4 plants.
C) are found in tropical regions where nutrients are abundant.
D) All of the choices are correct.

Question

Quizplus · Accepted Answer

CAM plants (Crassulacean Acid Metabolism plants) have their carbon dioxide fixation and carbon dioxide uptake separated by time. During the night, the stomata open and uptake carbon dioxide, which is stored as organic acids. During the day, the stomata close to conserve water, and the stored acids are broken down, releasing carbon dioxide for photosynthesis.

While C-4 Plants Have Carbon Dioxide Fixation and Carbon Dioxide