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NEET Biology · Hard

Transport in Plants: Stomatal ions MCQ

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Stomatal ionsHardQuestion 10666

Question

According to the potassium ion concept, stomata open when guard cells:

  1. A
    Accumulate K+
    Correct
  2. B
    Lose K+
  3. C
    Deposit lignin
  4. D
    Accumulate starch only

Correct answer

Accumulate K+

Explanation

K+ accumulation lowers guard cell water potential and draws in water.

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