Diffusion is the movement of molecules from a region of higher concentration to a region of lower concentration until evenly distributed.

Osmosis is the net movement of solvent molecules from a region of high concentration to one of low concentration across a partially permeable membrane.

Heamolysis is the destruction of red blood cells which leads to the release of hemoglobin from within the red blood cells into the blood plasma.

Crenation is the shrinkage of cells that occurs when the surrounding solution is hypertonic to the cellular cytoplasm.

Plasmolysis is the process in which cells lose water in a hypertonic solution.