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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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Re:

How would you know? A blood pressure reading is just a reading of high pressure and low - it's assumed the high ... happen if some weird reverse was true also. One might imagine a condition where osmotic movement increases base pressure, but I don't know how ineffectual a heartbeat ...

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by teju85
Wed Nov 13, 2013 11:00 pm
 
Forum: Human Biology
Topic: Can Systolic BP ever be less than Diastolic?
Replies: 5
Views: 5328

Can Systolic BP ever be less than Diastolic?

How would you know? A blood pressure reading is just a reading of high pressure and low - it's assumed the high ... happen if some weird reverse was true also. One might imagine a condition where osmotic movement increases base pressure, but I don't know how ineffectual a heartbeat ...

See entire post
by Darby
Mon Oct 14, 2013 10:34 pm
 
Forum: Human Biology
Topic: Can Systolic BP ever be less than Diastolic?
Replies: 5
Views: 5328

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: 8615

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: 8615

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: 1814
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