👉 Osmosis is a process in which water moves from an area of higher concentration to an area of lower concentration through a medium such as a solution. It's a fundamental concept in chemistry and biology, used in the study of solubility, diffusion, and membrane transport processes. In simple terms, osmosis occurs when water molecules (wells) move across a semi-permeable membrane (a type of cell membrane), which allows water to pass through but prevents it from entering. This