In CAM plants, during the day A) CO₂ is fixed to form oxaloacetate. B) the stomata open. C) oxygen is used by the Calvin cycle. D) CO₂ is used by the Calvin cycle. E) oxaloacetate is converted into malate.

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Quizplus · Accepted Answer

In CAM plants, during the day, the stomata are closed to minimize water loss, and carbon dioxide (CO2) fixed at night is released from malate and used by the Calvin cycle for photosynthesis.

In CAM Plants, During the Day