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    Question

    The respiratory quotient of succulent plants is

    ____
    A >1 Correct Answer Incorrect Answer
    B <0 Correct Answer Incorrect Answer
    C 1.5. Correct Answer Incorrect Answer

    Solution

    In succulent plants at night the stomata are open and carbon dioxide is fixed into organic acids. Thus at night there is no net carbon dioxide evolved. Hence, value of RQ is zero.

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