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Year 10 Biology Coursework Investigation Introduction Osmosis is the passage of water from a region of high water concentration through a semi-permeable membrane to a region of low water concentration Factors Factors that could affect the rate of osmosis are concentration solute, tissue type, temperature, solute type, surface area, tissue volume and pH. Variables I will investigate the rate of osmosis the tissue of a potato, and I will vary the solute concentration, as it is most practical with the equipment provided for us to use. I will attempt to keep the temperature in which the experiment wil be stored the same, I will keep the sucrose the same, and I will keep the weight and surface area of the potatoes the same. Apparatus The apparatus I will need to carry out this investigation are: Six 250ml conical flasks; 0.3cm potato borer; Small knife; One Potato; A ruler; A balance; A solution made of distilled water and sucrose made to different concentrations; Paper towels to...

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