Johnston, Francis J. Department of Chemistry, University of Georgia, Athens, Georgia.
Last reviewed:March 2019
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- Mechanism of osmosis
- Osmotic pressure
- Reverse osmosis
- Links to Primary Literature
- Additional Readings
The selective passage of solvent molecules through a semipermeable membrane from a dilute solution to a more concentrated one. A semipermeable membrane allows the passage of solvent molecules but blocks the passage of solute molecules. The movement of water by osmosis through cell membranes is essential for all physiological processes. Osmosis also has diverse experimental and industrial applications. See also: Cell (biology); Cell membranes; Osmoregulatory mechanisms; Solution
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