SSC CGL 2023 PYQ — Question 37

The correct answer is option 2 i.e. Stomatal pores open.

When water flows into the guard cells, they swell and become turgid. This occurs because the water enters the cells through osmosis, causing them to fill up and increase in volume. As the guard cells expand, they exert pressure on the surrounding cells and their walls bend outward. This bending action opens the stomatal pores between the guard cells. Opening these pores enables the exchange of gases such as carbon dioxide and oxygen between the plant and the environment, while also allowing water vapor to escape through transpiration.