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NEET Biology NEET PYQ-Photosynthesis and Translocation of Organic Solute

  • question_answer
    Opening and closing of stomata is due to: [AIPMT 2002]

    A) hormonal change in guard cells

    B) change in turgor pressure of guard cells

    C) gaseous exchange

    D) respiration

    Correct Answer: B

    Solution :

    [B] 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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