Osmosis
Illustration of osmosis, or osmotic pressure, by which higher concentrations of molecules of a solvent (water) can pass through a semipermeable membrane (cell wall) to lower concentration cellular fluid. Image © copyright by Dave Carlson.
Illustration of osmosis, or osmotic pressure, by which higher concentrations of molecules of a solvent (water) can pass through a semipermeable membrane (cell wall) to lower concentration cellular fluid. Image © copyright by Dave Carlson.