What is osmosis: Osmosis is the movement

Osmosis is the movement of water from an area of high concentration to an area of low concentration. Water moves through the xylem in a stream called a transpiration stream, up to the leaves of the plant. What is osmosis and why does it occur? Osmosis is the movement of water molecules from an area of high water concentration to an area of low water concentration through a partially/selectively permeable membrane (PPM). What are the differences and similarities between osmosis , active transport and diffusion? Osmosis is a term used to describe the movement of water molecules from a high water potential to a low water potential. Explain these 3 terms in relation to cells and osmosis : isotonic, hypertonic and hypotonic? These 3 terms all describe the 3 possible concentrations of a solution in respect to the water potential surrounding a cell.