The flux of which one of the following ions plays a dominant role in adjusting the turgor of guard cells during the opening and closing of stomata?

Question

Quizplus · Accepted Answer

The flux of potassium ions (K+) plays a dominant role in adjusting the turgor of guard cells during the opening and closing of stomata. When K+ ions enter the guard cells, they increase the osmotic pressure inside the cells, causing them to swell and open the stomata. Conversely, when K+ ions exit the guard cells, the osmotic pressure decreases, leading to the closing of the stomata.

The Flux of Which One of the Following Ions Plays