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Transport in Plants

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  1. Conversion of starch to organic acids is required for
    1. stomatal opening
    2. stomatal closing
    3. stomatal formation
    4. stomatal activity
Correct Option: A

Starch is converted to malic acid (organic acid) through the action of an enzyme phosphoenol pyruvate carboxylase (PEPC) under condition of high pH when most of the CO2 is utilized due to high photosynthetic rate during daytime.


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