0
They are cells in the leaf epidermis, located arond the stomata. A pair of guard cells open and close each stoma (pore) for gas exchange and transpiration. They are different in shape from the rest of the epidermis cells, and unlike other epidermis cells they also contain chloroplasts.
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
What are the guard cells in the stomata?
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. Improved answer- Guard Cell
The guard cells control the opening and closing of what structure?
Stomatal pore
What is the difference between guard cells and epidermal cells and how it relate to the difference in their functions?
epidermal cells form the outermost layer of cells of the organism. guard cells control opening and closing of any pore like in the case of stomata, epidermal cells provide protection and guard cells take care of opening and closing of stomatal pore depending on the plant's need of carbon dioxide or oxygen.
Is a leaf pore a cell?
Yes, leaf pore is a cell, which is also known as stomata.
What do the guard cells and stomata look like?
Both play part in allowing gases in and out, esp carbon dioxide which is needed for photosynthesis. Stoma, by being a pore; Guard cell, by opening (becoming turgid) and closing (become flaccid) when necessary. They are also both necessary for the leaf's survival.
What are Guard cells are found in?
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. Improved answer- Guard Cell
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 cell in a leaf are like a balloon?
The guard cell of stomata look like a balloon when it is turgid. Two such cells form the pore of the stomata. When both guard cells of a stomata are deflated by exo-osmosis the stomatal pore is closed.
What are the guard cells in the stomata?
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. Improved answer- Guard Cell
What is the gatekeeper cell?
That would be the "guard cells". The stoma is an opening on the underside of many leaves and each stoma is bordered by a pair of guard cells that open and close the pore to allow for "transpiration" (the passage of water in either gaseous or liquid form into or out of the leaf). In hot, dry weather, the guard cells close to prevent water loss. In humid weather, the guard cells allow the pore to open and water can enter.
How are guard cells associated with stomata?
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. Improved answer- Guard Cell
What is the openings in the epidermis of a leaf that let CO2 into the leaves?
The stoma, or pores of a plant control all gas exchange. The stoma is found in the epidermis of the leaf.
The guard cells control the opening and closing of what structure?
Stomatal pore
What does a leaf stomata do?
It's a pore found in the epidermis of the leaf and stem of a plant, used for gas exchange.
What is the difference between guard cells and epidermal cells and how it relate to the difference in their functions?
epidermal cells form the outermost layer of cells of the organism. guard cells control opening and closing of any pore like in the case of stomata, epidermal cells provide protection and guard cells take care of opening and closing of stomatal pore depending on the plant's need of carbon dioxide or oxygen.
Is a leaf pore a cell?
Yes, leaf pore is a cell, which is also known as stomata.
What keeps a leaf from drYing?
Guard cell is an epidermal cell that is also a multisensor hydraulic valve. The guard cells surround the stomatal pore which controls the opening and closing of the stomatal. Due to tugor changes,the guard cells can be triggered by light, temperature, carbon dioxide concentration and hydration of the leaf. Ex: The guard cells are triggered by a high temperature and closes the stomatal pore to conserve water.
