Question

The loss of turgor pressure in guard cells results in ___ of stomatal pore.

Answer 1

Guard cells:

1. Two guard cells are present at the two sides of the stomatal pore. ​
2. The opening and closing of the stomata are controlled by the guard cells.
   
3. In the presence of excess water, the guard cells take up water by osmosis and become turgid.
4. This turgidity opens up the stomatal pore, which allows movement of gases and transpiration to occur through the stomata.
   
5. As the excess water is lost through transpiration, the guard cells shrink again and closes the stomatal pore.
   

Final Answer: The loss of turgor pressure in guard cells results in opening of stomatal pore.