Difference between revisions of "Guard Cell"
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|[[File:GuardCellClipart.png|center|300px]] | |[[File:GuardCellClipart.png|center|300px]] | ||
| − | |[[File:GuardCellFlaccidClipart.png|center| | + | |[[File:GuardCellFlaccidClipart.png|center|200px]] |
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| style="height:20px; width:300px; text-align:center;" |[[Turgid]] '''guard cells''' are full of [[water]] and have a hole called a [[stoma]] between them to allow air in and out. | | style="height:20px; width:300px; text-align:center;" |[[Turgid]] '''guard cells''' are full of [[water]] and have a hole called a [[stoma]] between them to allow air in and out. | ||
| style="height:20px; width:250px; text-align:center;" |[[Flaccid]] '''guard cells''' are [[dehydrated]] and the [[stoma]] is blocked stopping air form getting in or out of the [[leaf]]. | | style="height:20px; width:250px; text-align:center;" |[[Flaccid]] '''guard cells''' are [[dehydrated]] and the [[stoma]] is blocked stopping air form getting in or out of the [[leaf]]. | ||
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Revision as of 16:44, 7 September 2018
Key Stage 3
Meaning
The two guard cells can be seen at the leaf.
A guard cell is a specialised cell in a plant leaf which contains can change shape to allow or stop gases from getting into the leaf.
Adaptations of the Guard Cell
- Guard cells can change shape to open and close a hole called a stoma.
About Guard Cells
- Guard cells are shaped with a gap between them called a stoma.
- There are more guard cells found on the bottom of the leaf.
- Guard cells fill with water to become turgid. This makes the stoma larger. When the leaf gets dehydrated the guard cells become flaccid. This makes the stoma smaller.
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| Turgid guard cells are full of water and have a hole called a stoma between them to allow air in and out. | Flaccid guard cells are dehydrated and the stoma is blocked stopping air form getting in or out of the leaf. |