0
The job of guard cells is to open and close the stomata.
Stomata are the pores found on the leaves of plants. Their function is to allow carbon dioxide to enter the leaf (for photosunthesis) and oxygen (made by photosynthesis) to leave the leaf.
Usually stomata open during the day and close at night. This is to save water, since water vapour can escape as long as the stomata are open.
The guard cells control the size of the stomatal pore by changing their shape. When they are curved, a gap opens up between them. When they straighten (lose their curved shape) the gap is closed.
The change in shape is caused by water either entering the guard cells (to open the stomata) or leaving the guard cells (to close the stomata).
http://www.bbc.co.UK/schools/gcsebitesize/Biology/greenplantsasorganisms/1watertransportrev2.shtml
http://www.phschool.com/science/biology_place/labbench/lab9/guard.HTML
http://waynesword.palomar.edu/photsyn1.htm
A study of stomata in fossil plants can give us information about the ancient climate.
See: http://evolution.berkeley.edu/evolibrary/article/0_0_0/mcelwain_03
Sister Little
Wiki User
∙ 12y agoThe job of guard cells is to open and close the stomata.
Stomata are the pores found on the leaves of plants. Their function is to allow carbon dioxide to enter the leaf (for photosunthesis) and oxygen (made by photosynthesis) to leave the leaf.
Usually stomata open during the day and close at night. This is to save water, since water vapour can escape as long as the stomata are open.
The guard cells control the size of the stomatal pore by changing their shape. When they are curved, a gap opens up between them. When they straighten (lose their curved shape) the gap is closed.
The change in shape is caused by water either entering the guard cells (to open the stomata) or leaving the guard cells (to close the stomata).
http://www.bbc.co.UK/schools/gcsebitesize/Biology/greenplantsasorganisms/1watertransportrev2.shtml
http://www.phschool.com/science/biology_place/labbench/lab9/guard.HTML
http://waynesword.palomar.edu/photsyn1.htm
A study of stomata in fossil plants can give us information about the ancient climate.
See: http://evolution.berkeley.edu/evolibrary/article/0_0_0/mcelwain_03
Add your answer:
Earn +20 pts
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 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.
What is the difference between a guard cell and other cells?
Answer1. Guard cells have chloroplast, epidermal cells do not have.2. Guard cells are much smaller than the epidermal cells.3. The cell walls of guard cells are not uniform, inner walls are thicker than the outer walls. epidermal cells are unformly thin.
