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Investigating Osmosis in Potato Cells Introduction Osmosis is a process where water molecules move from a high concentration of water to a low concentration through a partially permeable membrane. Potatoes are vegetables that are mainly made up of carbohydrates. They are therefore a good source of sugars. These sugars are used to supply the potato plant with energy to grow. Potatoes store starch. Because they are used for storage below ground, they do not contain chlorophyll within their cells; this is very unusual in plant cells. Aim To see the effect of salt solutions of different concentrations on the length of the potato chip and from those results, deduce the concentration of cytoplasm and cell sap within the potato cells. Variables * The possible variables within this experiment are: * Length of chip * Solution strength (% concentration) * Volume of salt solution * Type of potato (for example: King Edward) * Diameter/width of chip * Age of potato * Temperature of...

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