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True or false guard cells control the opening and closing of the stomates?
Wiki User
∙ 12y ago
Yup. Guard cells, shaped like little kidney beans, are arranged in pairs at a stomate, with their concave sides facing each other. These concave sides have a thicker cell wall than the remainder of each cell's wall, so that when water is driven in, the guard cells swell, causing the concavities to spread apart in the middle, opening an eye-shaped slit. This is the open stomate, which lets out gasses from respiration (namely O2, and often a characteristic fragrance, like Sweet Gum trees make the woods smell sweet) and water vapor. When the turgor pressure (or internal water pressure in each cell) subsides, the cells reduce in size, and the erstwhile separated concavities of the guard cells now fully touch, closing the stomate.
Wiki User
∙ 15y ago
Wiki User
∙ 12y agoTrue, they control the opening of the STOMATA during transpiration, and to allow CO2 in for Photosynthesis.
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What ions involve the opening and closing of stomata?
Potassium ions, they contribute to the control of turgidity of guard cells, and thus the opening and closing of stomata.
Which leaf cells control the opening of the stomata?
one leaf cell is the air
What mechanism causes stomates to open when the guard cells are in good conditions?
The reversible uptake and loss of potassium ions (K+)
When would guard cells close the stomates?
Guard cells would close the stomata to prevent excess water loss through transpiration, normally when the weather is extremely hot or there is a lack of ground water. This is a regulatory mechanism to prevent dehydration.
What is a disorder in which cells lose the ability to control their growth rate?
Cancer is the disorder that causes someone's own cells in their body to lose the ability to control growth.
Guard cells control the opening and closing of the stomates true or false?
true :)
Which area of the leaf is most responsible for protecting the leaf from the drying effects of the air?
Well, the stomates open and close in order to prevent water loss, and guard cells control this opening and closing.
What is the of guard cells?
the function of guard cells are that they control the opening and closing of the stoma
What does guard cells do on a leaf?
Control the opening and closing of the stomata.
What the function of guard cells?
the function of guard cells are that they control the opening and closing of the stoma
What do guard cells close to prevent excess water loss?
The guard cells provide the plant with the control mechanisms. The guard cells control the opening and closing of the stomata in plant tissue. Without guard cells, the plants would not be able to control its water intake.
The guard cells control the opening and closing of what structure?
Stomatal pore
What ions involve the opening and closing of stomata?
Potassium ions, they contribute to the control of turgidity of guard cells, and thus the opening and closing of stomata.
What do guard cells in a plant do?
The guard cells in a plant are responsible for opening and closing the stomata. The stomata is a tiny opening on the blade of a leaf that allows for carbon dioxide to enter and water + oxygen to be released. The guard cells are triggered by concentrations of potassium ions.
How is the opening and closing of stomata controlled?
The guard cells controll the opening and closing of the statoma!
What is the function of guard cells in regulating gas exchange in a leaf?
Guard cells are on the surface of plant leaves and surround each stomata (small pores all over the leaf surface). Stomata control the release of gases, including water vapor. During a drought plants occasionally look droopy but still alive, the plant looks wilted because its guard cells are preventing loss of moisture from the stoma (plural of stomata). When defining stomata, it is made of two parts: the pore (opening) itself, and the (2) guard cells around it.
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.
