Question

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

Answer 1

Answer:

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

Explanation:

When water flows into the guard cells, they swell up and the curved surface causes the stomata to open. When the guard cells lose water, they shrink and become flaccid and straight thus closing the stomata.

Answer 2

Answer:

The opening and closing of stomatal pore is a function of guard cells. Stomata act as turgor operated valves.The guard cells are thicker on the inner side and thinner on the outer side. The guard cells swell when water flow into them from the surrounding epidermal cells. They get curved out due to thick inner walls and produce a pore in between. Similarly, the pore closes when guard cells lose water to their surrounding cells and shrink back to their original position.