Which gas exchange outcome occurs in succulents when CAM pathway stomata open at night?

💡 Explanation

When CAM stomata open at night, CO2 fixation occurs because the cooler temperatures reduce water loss by transpiration, allowing efficient carbon uptake. Therefore, CO2 uptake and decreased water loss result, rather than O2 uptake with high transpiration, CO2 release (a daytime process), or carbohydrate synthesis cessation, which would negate the benefit of CAM.

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