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BIOLOGY COURSEWORK Introduction Water potential is a measure of the free kinetic energy of water in a system or the tendency of water to leave a system, it is measured in units of pressure (KPa) and is given the symbol . Where is the solute potential which is a measure of the reduction in water potential due to the presence of solute molecules Where is the pressure potential which is the pressure exerted on the cell contents by the cell wall and the cell membrane When a plant cell is placed in a solution of higher (hypotonic) e.g. pure water than the cell , water will enter by osmosis causing the vacuole to expand and push the cytoplasm outward against the cell wall .As more water enters the cell ,the pressure potential rises until it is equal (and opposite) to the solute potential .The water potential now is zero .No...

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