Which ion is crucial for the opening and closing of stomata?

Which ion is crucial for the opening and closing of stomata?

Step 1: Understand what stomata are. Stomata are tiny openings on the surface of leaves that allow gases to enter and exit the plant.
Step 2: Learn about turgor pressure. Turgor pressure is the pressure of water inside plant cells that helps them stay firm and upright.
Step 3: Know the role of potassium ions. Potassium ions (K+) are important for regulating the movement of water in and out of guard cells, which surround the stomata.
Step 4: Realize how potassium ions affect stomata. When potassium ions enter the guard cells, they cause water to flow in, increasing turgor pressure and opening the stomata.
Step 5: Understand the reverse process. When potassium ions leave the guard cells, water flows out, decreasing turgor pressure and closing the stomata.

No concepts available.