Difference between revisions of "Osmosis"
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'''Osmosis''' is movement of a solvent (such as water) across a semipermeable [[membrane]] into areas of higher [[solute]] [[concentration]].<ref>Wile, Dr. Jay L. ''Exploring Creation With Biology''. Apologia | '''Osmosis''' is movement of a solvent (such as water) across a semipermeable [[membrane]] into areas of higher [[solute]] [[concentration]].<ref>Wile, Dr. Jay L. ''Exploring Creation With Biology''. Apologia | ||
Educational Ministries, Inc. 1998</ref> '''Osmotic pressure''' determines the quantity of water displaced; it is proportional to the number of solute particles in a give volume of solution. | Educational Ministries, Inc. 1998</ref> '''Osmotic pressure''' determines the quantity of water displaced; it is proportional to the number of solute particles in a give volume of solution. | ||
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| + | The tendancy of water to move by osmisis is expressed as water potental, the greek letter psi is used as it's symbol and it is measured in kPa (kiloPascals). | ||
| + | Pure water has a water potential of 0kPa, solutes lower the water potential. | ||
===See Also=== | ===See Also=== | ||
Revision as of 11:16, October 10, 2008
Osmosis is movement of a solvent (such as water) across a semipermeable membrane into areas of higher solute concentration.[1] Osmotic pressure determines the quantity of water displaced; it is proportional to the number of solute particles in a give volume of solution.
The tendancy of water to move by osmisis is expressed as water potental, the greek letter psi is used as it's symbol and it is measured in kPa (kiloPascals). Pure water has a water potential of 0kPa, solutes lower the water potential.
See Also
References
- ↑ Wile, Dr. Jay L. Exploring Creation With Biology. Apologia Educational Ministries, Inc. 1998