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Guard cells are the two curved cells on either side of the pore (hole). By changing their shape they can open or close the pore.
When the guard cells absorb water they bend outwards, so that the pore between them opens up. When they lose water they go back to a less curved shape, closing the pore between them.
Guard cells bend outwards when they absorb water because the wall next to the pore is thicker than the outer wall, so blah it stretches less.
Usually, stomata open in the day to let carbon dioxide into the leaf for photosynthesis and to let oxygen (made by photosynthesis) out of the leaf. They close at night, when photosynthesis cannot take place, to prevent the escape of water.
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Guard Cell
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What cells guard the opening and closing of the stomata?
The guard cells are specialized cells that control the opening and closing of the stomata in plant leaves. They can change shape to regulate the exchange of gases and water vapor between the leaf and the surrounding environment.
Stomata open and close in response to pressure within?
Stomata open and close in response to changes in turgor pressure within the guard cells. When guard cells take up water, they become turgid and the stomata open to allow gas exchange. Conversely, when guard cells lose water, they become flaccid and the stomata close to prevent water loss.
What are the names of the specialized cells that control the aperture of the hole of the stomata?
The specialized cells that control the aperture of the stomata are called guard cells. These cells change shape to open and close the pore of the stomata, thus regulating gas exchange and transpiration in plant leaves.
The type of cell that controls the opening and closing of stomata is called?
guard cells
The cells that monitor the size of stomata are the?
Guard cells are the specialized cells that monitor and regulate the size of stomata in plant leaves. They control the opening and closing of stomata to regulate gas exchange and water loss in the plant.
What cells guard the opening and closing of the stomata?
The guard cells are specialized cells that control the opening and closing of the stomata in plant leaves. They can change shape to regulate the exchange of gases and water vapor between the leaf and the surrounding environment.
What are the cells that surround the stomata called?
Guard Cells surround the stomata, and enable it to open or shut.
Are guard cells part of the stomata or does stomata only refer to the pore on the lower surface of the leaf?
The stomata are the pores and the guard cells control the opening and closing of these pores.
What cells monitor the size of stomata?
The guard cells.
What regulates the stomata?
The guard cells open and close the stomata as needed.
Stomata open and close in response to pressure within?
Stomata open and close in response to changes in turgor pressure within the guard cells. When guard cells take up water, they become turgid and the stomata open to allow gas exchange. Conversely, when guard cells lose water, they become flaccid and the stomata close to prevent water loss.
What are the names of the specialized cells that control the aperture of the hole of the stomata?
The specialized cells that control the aperture of the stomata are called guard cells. These cells change shape to open and close the pore of the stomata, thus regulating gas exchange and transpiration in plant leaves.
Which cells form the stomata?
Guard cells form the stomata. They can open and close to regulate the exchange of gases such as oxygen and carbon dioxide, as well as control water loss in plants.
The type of cell that controls the opening and closing of stomata is called?
guard cells
Cells that form edges of the stomata?
Guard cells. They are bean-shaped and this allows for the opening and closing of stomata.
The cells that monitor the size of stomata are the?
Guard cells are the specialized cells that monitor and regulate the size of stomata in plant leaves. They control the opening and closing of stomata to regulate gas exchange and water loss in the plant.
How does turgor pressure affects the opening and closing of stomata?
The stoma is "turgor operated valve". The opening and closing of stoma is regulated by the turgidity of guard cells. The stomata are open when the guard cells are turgid. On losing turgidity in guard cells, the stomata closes.
