Question

How do the guard cells regulate the process of opening and closing of stomatal pores?

Answer 1

The swelling of guard cells due to absorption of water causes opening of stomatal pores while shrinking of guard cells closes the pores. Opening and closing of stomata occurs due to turgor changes in guard cells. When guard cells are turgid, stomatal pore is open while in flaccid conditions, the stomatal aperture closes

Answer 2

Stomatal pores in the regulate the amount of water and solutes within them by opening and closing their guard cell using osmotic pressure.
In order for plant to produce energy and maintain cellular function, their cells undergo the highly intricate process of photosynthesis. critical in this process is the stomata