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GCSE Coursework investigation - Water Potential of Potato Cells Aim: to find the water potential of potato cells Introduction In my investigation, I hope to determine the water potential of potato cells. The plant material I will use in my investigation will be potato chips, which I will cut myself prior to the investigation. I hope to find the concentration of a solution where the chip stays the same mass and length, which will tell me that the water potential inside the cells is the same as the water potential outside the cells. Background Osmosis is defined as the movement of water through a semi-permeable membrane. Semi - permeable membranes are permeable to water but impermeable to certain dissolved substances. In the case of this experiment, the sucrose molecules cannot diffuse through the cell membrane because the sucrose molecules are much bigger than water molecules. The water potential of a solution is a measure how...

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