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There's really isn't a black and white question to this answer. Guard cells when open allow for CO2 and Oxygen to diffuse into the spongy mesophyl, while at the same time this causes water to evaporate at a higher rate through the stomata.
There is a fine balance between stomatal opening (Guard cell is turgid) and stomatal closing (Guard cell is flaccid). For example the Guard cells might swell at night so that CO2 and Oxygen can diffuse into the plant while they might shrivel in the day so that less water can evaporate out of the stomatal pores.
What else can I help you with?
How do guard cells regulate the exchange of gases between a leaf and the air?
The guard cells regulate the exchange of gases between the leaf and air through the use of openings called stomatal pores.
What are guard cells and what is their function?
Guard cells allows the exchange of oxygen and carbon dioxide in and out of the leaf. This is known as leaf exchange. When guard cells are full of water they swell up and close meaning no oxygen can leave or carbon dioxide can enter, but when the water is taken away from the cell they open up to allow oxygen to exit and carbon dioxide to enter.
What tissues of a leaf have guard cells and stomata?
Epidermis
What are the cells that control the openings on the underside of the leaf called?
The cells that control the openings (stomata) on the underside of the leaf are called Guard Cells.The guard cells are found on either side of each stoma. These guard cells can swell or shrink in size depending upon the environmental conditions.(Stomata are structures through which gas exchange occurs and evaporation of water from the leaves take place.)When the atmosphere has a high water content, the guard cells swell with water forcing the stoma to open and allows the exchange of gases. When the stoma is open, the plant also loses water through a process called transpiration (evaporation of water from the plant leaves).In dry atmospheric conditions, the guard cells shrink in size to close the stoma preventing further loss of moisture from the plant.
What are pores surrounded by guard cells in the epidermis of a leaf?
Pores, known as stomata, are surrounded by two specialized cells called guard cells in the epidermis of a leaf. These guard cells control the opening and closing of the stomata, regulating the entry of carbon dioxide for photosynthesis and the release of oxygen and water vapor. They help to maintain the balance of gas exchange and water regulation in the leaf.
What happens when the stomatas of a plant are facing the sun?
The guard cells in the stomata will swell and it will cause the pores to be at its widest and CO2 diffuses into the leaf and into the cells and it will be used for photosynthesis. It will also diffuse water vapour from the leaf.
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.
How do guard cells regulate the exchange of gases between a leaf and the air?
The guard cells regulate the exchange of gases between the leaf and air through the use of openings called stomatal pores.
What are guard cells and what is their function?
Guard cells allows the exchange of oxygen and carbon dioxide in and out of the leaf. This is known as leaf exchange. When guard cells are full of water they swell up and close meaning no oxygen can leave or carbon dioxide can enter, but when the water is taken away from the cell they open up to allow oxygen to exit and carbon dioxide to enter.
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 mechanism causes the stoma to open when the guard cells are on good conditions?
when water flows the guard cells swell up and open and when the guard cells shrink the stomatal pore closes. During sunlight hours, K+ (potassium) ions enter the guard cells, causing a drop in their water potential. Sugar produced via photosynthesis also decreases water potential. Water is then taken in through osmosis. Guard cells swell up and become turgid - stomas open. At night, K+ ions leave the guard cells, causing an increase in water potential. Water leaves the plant. Guard cells then become flaccid, straighten up and the stoma closes. This way, the amount of water escaping from the leaf is controlled.
What do guard cells have the ability to absorb from the leaf?
water
What tissues of a leaf have guard cells and stomata?
Epidermis
What part of the leaf can you find chlorophyll?
In the palisade cells, spongy cells, and guard cells.
What happens when water enters guard cells?
When water enters the guard cells of a plant, they become turgid and swell up, causing the stoma to open. This allows for gas exchange to occur in the leaf, facilitating photosynthesis. Conversely, when water is lost from the guard cells, they become flaccid, leading to stoma closure to prevent excessive water loss.
What are the cells that control the openings on the underside of the leaf called?
The cells that control the openings (stomata) on the underside of the leaf are called Guard Cells.The guard cells are found on either side of each stoma. These guard cells can swell or shrink in size depending upon the environmental conditions.(Stomata are structures through which gas exchange occurs and evaporation of water from the leaves take place.)When the atmosphere has a high water content, the guard cells swell with water forcing the stoma to open and allows the exchange of gases. When the stoma is open, the plant also loses water through a process called transpiration (evaporation of water from the plant leaves).In dry atmospheric conditions, the guard cells shrink in size to close the stoma preventing further loss of moisture from the plant.
What organelles do guard cells contain that are absent in the skin cells of a leaf?
Guard cells contain chloroplasts, which are responsible for photosynthesis, and a large central vacuole that regulates the opening and closing of stomata. These organelles are absent in the skin cells of a leaf.
