Osmosis

Osmosis (http://www.cellprotect.net/osmosis.gif)

2.
 * "a.** Diffusion of fluid through a semipermeable membrane from a solution with a low solute concentration to a solution with a higher solute concentration until there is an equal concentration of fluid on both sides of the membrane.**b.** The tendency of fluids to diffuse in such a manner."(http://www.thefreedictionary.com/osmosis)

http://www.chemistry.nmsu.edu/studntres/chem116/notes/osmosis.gif

Plant cells take in water by osmosis until the [|cell wall] pushes back on the cell's contents with the same pressure. (http://www.kscience.co.uk/as/module1/osmosis.htm)

(http://www.ias.ac.in/initiat/sci_ed/resources/chemistry/osmosis3.gif) Osmosis is a type of Passive Transport which is the oposite of active transport

(http://www.williamsclass.com/SeventhScienceWork/ImagesCellBricks/Osmosis.gif)