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Biology Coursework Planning - Osmosis in Potatoes Aim: To investigate the process of osmosis in potato cells. Key factors and planning an investigation which is a fair test The different factors which affected the process are: * Using 2 potatoes, so tubes came from different potatoes. * When drying the potato cylinders for excess solution, some of the tubes may have been dried more, so therefore will weigh less. * When cutting the potato tubes, some of the cells may have been damaged. * The potato tubes were not put in the solution at the same time, so some tubes start osmosis before other tubes making it unfair. * The shape of the potato. The different factors which I will be trying to keep the same are: * Measuring the same amount of solutions in each test tube. * Cutting the potato tubes all to the same length. * Using all three tubes from the same potato. * Making sure that I...

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