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    Question

    Which of the following statement in not true about CAM

    plants
    A They are well adapted to arid regions Correct Answer Incorrect Answer
    B They have ability to fix CO2 lost in respiration Correct Answer Incorrect Answer
    C They behave like C3 plants during night and as C4plant during day Correct Answer Incorrect Answer
    D They have slowest photosynthetic rates Correct Answer Incorrect Answer

    Solution

    CAM (Crassulacean Acid Metabolism) plant are the one in which in which C4 cycle occur during the night and C3 cycle occur during the day. They open their stomata during night and fix CO2 into Oxaloacetic acid via PEP-carboxylase. The Oxaloacetic acid is stored as malic acid in the vacuole which breaks in day time to release CO2 for photosynthesis when their stomata remain closed

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