Turgor pressure
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2008-07-02T17:45:45Z
Filll
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this needs work
{{Refimprove|date=July 2006}}
''''Turgor pressure'''' or turgidity is the main pressure of the [[cell (biology)|cell]] contents against the [[cell wall]] in [[plant cell]]s and bacteria cells, determined by the water content of the [[vacuole]], resulting from [[osmotic pressure]], i.e. the [[hydrostatic pressure]] produced by a solution in a space divided by a [[semipermeable membrane]] due to a differential in the concentration of solute. Turgid plant cells contain more water than flaccid cells and exert a greater osmotic pressure on its cell walls.
Turgor is a force exerted outward on a plant cell wall by the H<sub>2</sub>O contained in the cell. This force gives the plant rigidity, and may help to keep it erect. Turgor may also result in the bursting of a cell.
==See also==
*[[Cell wall]]
*[[Osmotic pressure]]
*[[Osmosis]]
==External links==
* [http://www.biologie.uni-hamburg.de/b-online/e22/22c.htm Osmotic pressure]
* [http://www.microscopy-uk.org.uk/mag/artoct99/plantupright.html How do non woody plants stay upright?]
* [http://lsvr12.kanti-frauenfeld.ch/KOJ/Java/Osmosis.html NetLogo Turgor simulation for educational use (Java Applet for fast PCs)]
* [http://lsvr12.kanti-frauenfeld.ch/KOJ/Java/Osmosis_fast.html NetLogo Turgor simulation for educational use (Java Applet, runs fast also on slow PCs)]
<ref>mudau k:2008;biology for life sciences, uwc</ref>
==References==
<references />
Campbell, N. A., Reece, J. B. Biology: Sixth Edition; Benjamin Cummings: New York, NY, 2002; Vol. 1.
[[Category:Cell biology]]
[[Category:Membrane biology]]
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