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Osmotic pressure

Definition

noun

A hydrostatic pressure caused by a difference in the amounts of solutes between solutions that are separated by a semi-permeable membrane.


Supplement

Osmotic pressure reduces water potential, which is the tendency of water moving from one area to another. Thus, it is necessary in plant cells for turgidity and support.


See also: hydrostatic pressure, Osmotic Potential, osmosis.

User Contributions / Comments:

  • The osmotic pressure is defined to be the pressure required to maintain an equilibrium, with no net movement of solvent.

(http://en.wikipedia.org/wiki/Osmosis)


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How will conc. on 2 sides be equal when osmosis stops?

could you please explain why osmotic pressure will be equal since osmotic pressure is directly proportional to the centration of solute? and the ...

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by kochibaza
Wed Dec 19, 2012 5:52 am
 
Forum: Physiology
Topic: How will conc. on 2 sides be equal when osmosis stops?
Replies: 4
Views: 887

How will conc. on 2 sides be equal when osmosis stops?

... the membrane, the concentrations will not be the same. However, the osmotic pressure could be the same (if there was not only pure water, but some solution).

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by JackBean
Tue Dec 18, 2012 9:02 pm
 
Forum: Physiology
Topic: How will conc. on 2 sides be equal when osmosis stops?
Replies: 4
Views: 887

Commercial AFP and Osmotic Pressure Salt Water Fish

I am trying to improve our frozen fish business by adding AFP (Anti Freeze Protein). I have got a few questions I would like to ask: 1. Is Type III AFP commercially available? 2. If so, where / who should I contact? 3. Otherwise, any better or more readily available subtitute? 4. What should be the ...

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by anthell
Tue Nov 20, 2012 6:37 pm
 
Forum: Molecular Biology
Topic: Commercial AFP and Osmotic Pressure Salt Water Fish
Replies: 0
Views: 249

Blood Glucose Levels

... glucose levels in the blood. This, in turn, causes the so-called osmotic diuresis where the kidneys "leak" water and glucose due to the effects of the increased osmotic pressure. So, your reasoning would not work in this case, since the pancreas cannot ...

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by biohazard
Thu Jun 07, 2012 7:22 am
 
Forum: General Discussion
Topic: Blood Glucose Levels
Replies: 4
Views: 2753

Re:

... into the leaves (the other mechanisms being capillary action and osmotic pressure). So closing the stomata DOES reduce the intake of water.

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by EmperorSunshine
Wed May 23, 2012 4:23 am
 
Forum: Botany Discussion
Topic: Photorespiration
Replies: 3
Views: 1570
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