Multiple choice

ABA helps in closure of stomata by ______.

  1. decreasing the movement of K+ out of the guard cell

  2. increasing the rapid movement of K+ out of the guard cell

  3. decreasing the amount of water in the guard cell

  4. increasing the amount of water out of the guard cell
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Rapid movement of potassium ion out of the guard cell causes stomata closure.

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