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How are Potatoes CellsAffected by Osmosis?
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How are Potatoes Cells Affected by Osmosis? Biology Coursework Osmosis in Plant Cells Aim: The aim of this experiment is to investigate the process of osmosis in plant cells taken from potatoes and to observe what changes which take place in the potato when left in varying glucose solutions. Background: The porous nature of the cell membrane means that only those molecules that are small enough will diffuse through it unimpeded. Larger molecules penetrate either slowly or not at all. Thus, the cell membrane is considered to be semi-permeable. In the diagram shown below, the cell has a higher concentration of glucose on the right-hand side compared to the left-hand side, as there are more glucose molecules per water molecules. Osmosis involves the passage of water molecules from a region of high water concentration (the left-hand side) to a region of lower water concentration (the right-hand side), through a semi-permeable membrane. This is why the water...
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