What is the difference between passive diffusion, facilitated diffusion, and osmosis?

across a is a type of passive transport, or transport across the cell membrane that does not require energy.

Passive diffusion is simply based on the difference in the potential. Diffusion across a cell membrane is a type of passive transport, or transport across the cell membrane that does not require energy. Facilitated diffusion is the process of passive transport of molecules or ions across a biological membrane via specific transmembrane integral . is the spontaneous net movement of solvent molecules through a semi-permeable membrane into a region of higher solute concentration, in the direction that tends to equalize the solute concentrations on the two sides.