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Investigate the effect of varying concentrations of a certain sugar solution on the amount of osmotic activity between the solution and a potato cylinder of a given size.
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Biology Coursework Ashleigh Rothwell 11wx Osmosis Investigation Aim: - To investigate the effect of varying concentrations of a certain sugar solution on the amount of osmotic activity between the solution and a potato cylinder of a given size. Apparatus: -> Test tube rack> 7 x test tubes> a potato> cork borer> white tile> mounting needle> scalpel> mm ruler> stop clock> top pan balance> measuring cylinder> de-ionised water> hot plate> sugar solutions - 0.1 molar - 0.25 molar - 0.5 molar - 0.75 molar - 1 molar Prediction: - Osmosis is defined as the net movement of water from a region in which there are highly concentrated into a region in which they are less concentrated. This movement must take place across a partially permeable membrane such as a cell wall, which lets smaller molecules such as water through but does not allow bigger molecules to pass through. The molecules will continue to diffuse until the area in which the molecules...
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