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NEET AIPMT SOLVED PAPER 2002

  • question_answer
                    Opening and closing of stomata is due to:                                                                                            

    A)                 hormonal change in guard cells 

    B)                 change in turgor pressure of guard cells

    C)                 gaseous exchange                                          

    D)                 respiration

    Correct Answer: B

    Solution :

                    When the guard cells become turgid, the stomata open. On the other hand, if the guard cells lost water, these become flaccid, the inner walls sag and die pore closes.


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