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Dictionary » S » Semipermeable membrane

Semipermeable membrane

Definition

noun

A membrane that is selectively permeable, i.e. being permeable to only certain molecules and not to all molecules.


Supplement

An example of such membrane is the cell membrane wherein it allows passage of only certain types of molecules by diffusion and occasionally by facilitated diffusion.


Synonyms:

See also: cell membrane


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Osmosis question

When water diffuses through a semipermeable membrane it is due to the difference in water concentration or potential between membrane sides. What is ...

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by bioislife
Tue Oct 21, 2008 7:56 am
 
Forum: Cell Biology
Topic: Osmosis question
Replies: 3
Views: 626

diffusion and osmosis. help me please?

... reason for the failure of some of the molecules to diffuse through the membrane. (my answer) the bag is semipermeable meaning it only allows some (not all) substances to pass through it. [for the ...

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by lanzshade
Thu Oct 02, 2008 12:50 am
 
Forum: Cell Biology
Topic: diffusion and osmosis. help me please?
Replies: 1
Views: 2757

Its the Freshman again !! I NEED HELP ON OSMOSIS

Osmosis is the movement of water through a semipermeable membrane from a region of low solute potential to a region of high solute potential (or equivalently, ...

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by keef
Fri Nov 03, 2006 7:42 pm
 
Forum: Cell Biology
Topic: Its the Freshman again !! I NEED HELP ON OSMOSIS
Replies: 7
Views: 1292

semipermeability

semipermeable membrane allows only some substances to go through. There's a limit for substances to enter to the other side through ...

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by chibizz
Wed Sep 27, 2006 10:57 am
 
Forum: Cell Biology
Topic: semipermeability
Replies: 5
Views: 907

The Fiber Disease

... silicon surfaces S-layers as supporting structures for biomimetic membranes Immobilization, stabilization and patterning techniques for enzyme-based ... Diffusion-based separations in a microfabricated structure Silicon semipermeable membrane filter with straight pore in nanometer dimension Microfabricated ...

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by Nadas Moksha
Mon Aug 14, 2006 7:34 am
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 748642


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