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Osmosis Investigation  

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Osmosis Investigation Introduction Osmosis is defined as the diffusion of water molecules, down a water potential gradient, across a partially permeable membrane. If the solutions on each side of the partially permeable membrane are equally concentrated then there will be no net movement of water across the membrane. If the solution outside the cell has a low concentration of solute, this causes cells to become turgid as water flows into them, or if the solution outside the cell is of high concentration the cells become plasmolysed as the water flows out. Aim The aim of this investigation is to see what effect concentrated sugar solution has on the rate of osmosis on a vegetable. The vegetable chosen for this experiment is a potato. They have soaked in several concentrations of sucrose solution; these concentrations are 0.2, 0.4 and 0.6 and then the class concentrations of 0.2, 0.3, 0.35, 0.4, 0.5 and 0.6. These...

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