In most plants,stomata open during the day an | vedclass

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(A) In most plants,stomata open during the day to facilitate gas exchange for photosynthesis and close at night to prevent water loss. However,$CAM$ (

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Crassulacean acid metabolism $(CAM)$ plants

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(A) In most plants,stomata open during the day to facilitate gas exchange for photosynthesis and close at night to prevent water loss. However,$CAM$ (Crassulacean Acid Metabolism) plants exhibit a unique adaptation to arid environments. In these plants,stomata open at night to take in $CO_2$,which is then stored as organic acids (malic acid). During the day,the stomata remain closed to conserve water,and the stored $CO_2$ is released internally for the Calvin cycle. Therefore,$CAM$ plants are the exception.

In most plants,stomata open during the day and close at night. What is the exception to this?

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