NEET Biology NEET PYQ-Photosynthesis and Translocation of Organic Solute

  • question_answer
    Stomata of a plant open due to:   [AIPMT 2003]

    A) influx of hydrogen ions

    B) influx of calcium ions

    C) influx of potassium ions

    D) efflux of potassium ions

    Correct Answer: C

    Solution :

    [C] Accumulation of K+ ions in the guard cells during the day time is responsible for migration of water molecules from subsidiary cells to guard cells. This increases turgidity of guard cells and thus stomata become open.


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