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 explain the working of stomata?

Guard cells regulate the opening and closing of the stomata and this regulation is brought about by the movement of water in and out of the guard cells.  Potassium ions play a role in the opening and closing of stomata by changing the concentration of ions in the guard cells. When the potassium ions are inside the guard cells, water also flows into the guard cells because of osmosis causes them to swell which results in the opening of stomata. When the potassium ions are out of the guard cells, water also flows out of the guard cells because of osmosis and the stomata close.  

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  • Stomata helps the plant in the of entry and exit the gases. The plant's stomata allows carbon dioxide to enter the plant's leaves to be used in the photosynthesis process. The stomata also helps eliminate  oxygen from the plant after photosynthesis has taken place. Stomata open to bring in the carbon dioxide required for the photosynthesis process.The stomata control both the amount of water present in the plant, and the amount of carbon dioxide that enters.  

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