Osmosis is not driven by water dilution

Osmosis — the flow of a solvent across a semipermeable membrane from a region of lower to higher solute concentration — is a well-developed concept in physics and biophysics. The problem is that even though the concept is important to plant and human physiology, osmosis is understood in biology and chemistry in a much simpler — and often incorrect — way.

Fuente : http://www.eurekalert.org/pub_releases/2013-04/djc…