Define Osmotic potential and Osmotic pressure

Osmotic Potential: It is the potential of solution that makes water move from low solute concentration to high solute concentration across a semipermeable membrane.Pure water has zero potential, so for solutions the value will be always negative as they have less water because of the presence of solute.

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Osmotic pressureis thepressureapplied by a solution to prevent the inward flow of water across asemipermeable membraneandpotential of water molecules to move from hypotonic solution to hypertonic solution across a semi permeable membrane is called as osmotic potential

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