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Osmosis Investigation Aim: To Investigate Osmosis in potato cell using different concentrations of sugar solutions. Scientific Knowledge: Osmosis is the diffusion of water molecules from a region high water concentration to an area of low water concentration through a semi permeable membrane. Thus equalizing the conditions on either side of the membrane. A semi permeable membrane is a very thin layer of material -cell membranes are also semi permeable membranes- which allow small molecules including oxygen, water, carbon dioxide, ammonia, glucose, and amino acids to fit through (pass through) the little gaps in the membrane and prevent bigger molecules like sucrose, starch, protein passing through because the are to big to fit through the gaps. A region of high water concentration is a very dilute solution of sugar or just pure water where there is lots of water molecules causing a high water concentration. Whereas an area of low water concentration is an area with...

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