Osmosis Biography

Osmosis is the spontaneous net movement of water through a semipermeable membrane from a region of low solute concentration to a solution with a high solute concentration, up a solute concentration gradient. It is a physical process in which a solvent moves, without input of energy, across a semi permeable membrane (permeable to the solvent, but not the solute) separating two solutions of different concentrations. Osmosis Osmosis releases energy, and can be made to do work, as when a growing tree-root splits a stone.thumb|Computer simulation of the process of osmosis Net movement of solvent is from the less-concentrated (hypotonic) to the more-concentrated (hypertonic) solution, which tends to reduce the difference in concentrations. This effect can be countered by increasing the pressure of the hypertonic solution, with respect to the hypotonic. The osmotic pressure is defined to be the pressure required to maintain an equilibrium, with no net movement of solvent. Osmotic pressure i

Source: http://en.wikipedia.org/wiki/Osmosis
 

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