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Guard cells work to open the stomata of plant leaves, which fosters the exchange of gas and lets out transpired air (evaporated from the apoplast of the leaf). They do this in response to sunlight hitting the leaves, by pumping K+ (Potassium) ions in to create a more negative solute potential inside the guard cell; water follows the K+ ions in to equalize the water potential. With the extra water, the guard cell turgidity increases and the 'puffed up' guard cells cause the stomata to open.
Wiki User
∙ 13y ago
Wiki User
∙ 9y agoGuard cells close up to prevent water loss. These guard cells will also open up if water needs to go out of the cell.
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What cells guard the opening and closing of the stomata?
Stomatal pores in plants regulate the amount of water and solutes within them by opening and closing their guard cells using osmotic pressure. Guard cells and adjacent subsidiary cells are involved in opening and closing of stomata.
Which structure controls transpiration?
guard cells
What is the of guard cells?
the function of guard cells are that they control the opening and closing of the stoma
What are the names of the specialized cells that control the aperture of the hole of the stomata?
These are called the guard cells.
How plants open and close the stomata?
A chain of events leads to an increase in the concentration of sugar in the cell sap in the vacuole of guard cell. osmotic potential of cell sap decreases and guard cells withdraw water from the neighboring cells. this increases turgid pressure of the guard cells it swells up.the swelling of the outer wall causes the guard cells to curve away from each other so increases the gap between them stomata opens). and when guard cells lose water, they become flaccid and comes closer thus stomata closes.
How is the opening and closing of stomata controlled?
The guard cells controll the opening and closing of the statoma!
What the function of guard cells?
the function of guard cells are that they control the opening and closing of the stoma
Stomata open and close in response to pressure within?
guard cells
Can guard cells carry out photosynthesis?
No Guard cells are cells that close when there is dry weather, preventing the leaf from becoming dehydrated
What cells of the epidermis control sizes of stomata?
Guard cellsby- kara linwood
Do all plants have guard cells?
yes all plants have guard cells because if there's a plant that don't have guard cells the stomatal pores will not open neither close
How are the stomata controlled?
The stomata are controlled by two epidermal cells called guard cells. When water flows in, the guard cells swell up and closes the stomata. When the water leaves, it becomes flaccid and opens the stomata.
