Diffusion is the net movement of particles from and area of high concentration to an area of low concentration, down a concentration gradient.
Osmosis is the net movement of particles from an area of high water potential to an area of low water potential, down a water potential gradient.
Factors that affect diffusion: concentration gradient, higher equals faster. The thickness of the exchange surface, thinner equals faster. The surface area, larger equals faster.
Hypotonic solution: a solution with a higher water potential than the cell.
Isotonic solution: a solution with equal water potential to the cell.
Hypertonic solution: a solution with a lower water potential than…