Which mechanistic consequence results in CAM plants when PEP carboxylase activity occurs continuously?

💡 Explanation

When PEP carboxylase is always active it continues to fix CO2 into oxaloacetate, which converts to malate, accumulating in vacuoles, which overwhelms its diurnal cycle inside the mesophyll cells, disrupting normal function. Therefore cell acidification is disrupted rather than alternatives because they relate to conditions that require normal control.

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