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Investigating the water potential of plant material Aim: To discover the water potential of plant material (potato and apple). Introduction: Water potential/osmosis is the ability of water molecules to move from an area of high concentration to that of a lower concentration. Using this theory one can find the water potential of plant material by comparing it to solutions of a known water potential, i.e. sucrose solution. By discovering if the sucrose solutions have either higher or lower water potential than the plant material. This can be found by putting a sample of plant material into a specified concentration of sucrose solution, and then seeing if the net movement of water molecules is into or out of the sample. If the net movement were to be into the sample (this can be calculated by a change in the mass of the sample), the sucrose solution would have a higher water potential (greater water concentration) than...

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