Osmosis<span> is the movement of water and is always the movement in the membrane.</span>Diffusion<span> does not need a membrane to make molecules and </span>Diffusion<span> is the movement of molecules.</span>
Diffusion<span> is a spontaneous movement of particles from an area of high concentration to an area of low concentration. ... </span>Osmosis<span> is the spontaneous net movement of water across a semipermeable membrane from a region of low solute concentration to a more concentrated solution, up a concentration gradient.
