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Biology Coursework Osmosis in Potato Cells Plan Introduction Given that osmosis is the movement of water molecules by diffusion from a place where the water molecules are in a higher concentration (high water potential) to a place where the water molecules are in a lower concentration (low water potential) through a partially permeable membrane, the experiment to test osmosis in potato cells was set up. The experiment would prove the theory of osmosis and determine whether the concentration of water in the solution surrounding the potato was higher or lower than that of the water concentration inside the potato. This would cause the potato to become turgid or plasmolysed. Diagram of apparatus Variables and Method Above all other factors, for this experiment to work it needed to be a fair test. For this to be possible, all variables had to be controlled throughout. Seven separate concentrations of water and sucrose solutions were used in this experiment with a...

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