Question

What is osmosis?

Answer 1

Osmosis is the movement of water towards a concentration gradient based on solutes present in the system. Water will flow from high concentration to low concentration in these systems.

Answer 2

Well I was going to draw you a nice diagram, but had an accident with the drawing tool, so here's a nice animation instead: http://highered.mcgraw-hill.com/sites/0072495855/student_view0/chapter2/animation__how_osmosis_works.html