What is the role of malic acid in Crassuleacean Acid Metabolism (CAM)?

Question

Answer

In CAM, CO2 is directly fixed on malic acid.

Answer

During the day, malic acid is exported to the bundle sheath cells, where it is changed into pyruvate, releasing NADPH and CO2 that can enter the Calvin-Benson cycle.

Answer

In CAM, malic acid accumulates in the vacuole during the night. During the day, malic acid is transferred to the chloroplast and changed into pyruvate, thus releasing CO2 that can enter the Calvin-Benson cycle.

Answer

Malic acid reacts with oxygen during the day, which limits photorespiration.

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What is the role of malic acid in Crassuleacean Acid Metabolism (CAM)?

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