Multiple choice

Which of the following ions controls the stomatal movement in plants?

  1. Na+

  2. Ca2+

  3. Mg2+

  4. K+

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

  K+ ions controls the stomatal movement in plants. Basically Opening and closure of the stomatal pore is mediated by changes in the turgor pressure of the two guard cells.