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Investigate the effect of osmosis on the potato cylinders of a certain size in different concentrations of solution.
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Biology Coursework Osmosis Obada Sawalha Year 10 BCB Aim: To investigate the effect of osmosis on the potato cylinders of a certain size in different concentrations of solution. Hypothesis: * Water will flow from the low concentration to the high concentration. * The cylinders in high concentration solution will gain and increase in mass. * The cylinders in low concentration solution will loose and decrease in mass. Scientific Knowledge: Osmosis: Osmosis, which is regarded as a form of diffusion, is defined as the net movement of water or any small molecule across a partially permeable membrane from a region of low concentration to a region of higher concentration. Partially permeable membranes are very thin layers of material (cell membranes are partially permeable) which allow some things to pass through them but prevent other things from passing through. Partially permeable membranes will allow small molecules like Oxygen, water, Carbon Dioxide, Ammonia, Glucose, amino-acids, etc. to pass through. Cell membranes will not allow larger molecules like...
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