In osmosis, molecules are moved across the cell membrane through a process called passive transport. This involves the movement of water molecules from an area of high concentration to an area of low concentration, through a selectively permeable membrane. The osmotic pressure created by the concentration difference causes the water molecules to move across the membrane, balancing out the concentrations on both sides. This allows for the regulation of water and solute levels inside the cell, maintaining the cell's internal environment and promoting its overall function.
