VMMC VMMC Medical Solved Paper-2008

  • question_answer
    Which one is responsible for opening and closing of stomata ?

    A) Rise in pH of guard cell causes hydrolysis of starch

    B) Cytokinins and cAMP are requireds

    C) Abscisic acid promotes closure

    D) All of the above

    Correct Answer: D

    Solution :

    Lowering of water, hormone like ABA, rise in pH mechanical shock, temperature all regulate opening and closing of stomata.


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