How does solute concentration affect dialysis and osmosis?
In addition to simple diffusion and facilitated diffusion, two other types of diffusion play an extremely important role in transporting substances across cell membranes: • Dialysis refers to the diffusion of solutes across a selectively permeable membrane. • Osmosis, on the other hand, refers to the diffusion of the solvent across a selectively permeable membrane. Because water is the solvent in all living systems, biologists usually define osmosis as the diffusion of water across a selectively permeable membrane.
