68th BPSC Prelims (2023), question 96

🔬 Science & Technology

96. The stomata open or close due to change in the

    1. protein composition of cells
    2. amount of water in cells
    3. position of nucleus in cells
    4. More than one of the above
    5. None of the above
    Show answer

    Answer: B — amount of water in cells

    Stomata open and close due to changes in turgor pressure driven by the amount of water in the guard cells.

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