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To investigate the effects of sucrose concentration on osmosis in potato tissue PLANNING We have been asked to research the effects of sucrose concentration on osmosis in potato tissue. Osmosis is the spontaneous movement of a solvent (-in this case water) from a place where its chemical potential is higher to another place where it is lower, through a semi-permeable membrane (-such as a cell membrane). A cell membrane lets smaller molecules such as water through but does not allow bigger molecules to pass through. The smaller molecules will continue to diffuse across the membrane until the area in which the molecules are found reaches a state of equilibrium, meaning that the molecules are in a steady state, with molecules moving in and out of the membrane, however with no net loss or gain. Plant cells always have a rigid cell wall and cell membrane surrounding them. When they take up water by...

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