what is osmosis ?

Osmosisis the spontaneous net movement ofsolventmolecules through a partiallypermeablemembrane into a region of highersoluteconcentration, in the direction that tends to equalize the solute concentrations on the two sides.It may also be used to describe a physical process in which any solvent moves across a semipermeable membrane (permeable to thesolvent, but not the solute) separating two solutions of different concentrations.Osmosis can be made to do work.

Osmosis is the diffusion of the movement of water from a region of higher concentration to a region of lower concentration through a cell membrane or other semi-permeable membrane until an equilibrium is reached. It is a special case of diffusion (passive transport).