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Undertake an experiment to understand the effect of varying sucrose concentration on osmosis in potato chips, and to try and find where incipient plasmolysis lies between these experiments.
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Biology Coursework Aim Undertake an experiment to understand the effect of varying sucrose concentration on osmosis in potato chips, and to try and find where incipient plasmolysis lies between these experiments. Background Knowledge Osmosis is the movement of water molecules from regions of high water potential to regions of lower water potential through a semi-permeable membrane until equilibrium is reached. Semi-permeable membranes hold back larger molecules that water, not allowing them through, and this is particularly important in plant cells for maintaining turgor. Plant cells are surrounded by a cell wall, and cell walls are fully permeable which means that it will let any molecules through it; therefore osmosis will not occur across it. A plant cell also has a cell membrane, and just like an animal cell it is selectively permeable. A plant cell, in the same way as an animal cell, will take in the water by the process of osmosis...
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