Osmosis is the process by which water molecules move from an area of high water concentration to one of lower water concentration through a selectively permeable membrane. It is crucial for maintaining the balance of fluids in cells and across cell membranes.
Related terms
Selectively permeable membrane: A barrier that allows some substances to pass while blocking others, essential for controlling the movement of materials into and out of cells.
The movement of particles from an area of higher concentration to an area of lower concentration, a process that occurs alongside osmosis for solute particles.