CET Karnataka Medical CET - Karnataka Medical Solved Paper-2013

  • question_answer
    The opening and closing of stomata is controlled by the activity of                     

    A)  guard cells      

    B)  epidermal cells

    C)  mesophyll cells  

    D)  lenticels.

    Correct Answer: A

    Solution :

    : Stomata function as turgor-operated valves because their opening and closing movement is governed by the change in turgor of guard cells. Increase in turgor pressure creates a pore between them. With loss of turgor pressure in guard cells the stomatal pores are closed.


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