Which metabolic shift protects plants during intense drought using CAM pathways?

💡 Explanation

During drought, CAM plants use temporal separation. CO2 fixation by PEP carboxylase occurs at night, forming malate, which is stored since stomata are closed to reduce water loss during daylight. Therefore nocturnal CO2 fixation and malate storage results, rather than increased roots, chlorophyll, or cell division which are separate drought responses.

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