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When you submerge a plant cell in water, water flows through the cell wall and cell surface area into the vacuole from the outside. As a result, the cell swells up, but does not burst. This is because the cell wall stops the cell expanding too much.
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Introduction When you submerge a plant cell in water, water flows through the cell wall and cell surface area into the vacuole from the outside. As a result, the cell swells up, but does not burst. This is because the cell wall stops the cell expanding too much. When this point is reached we say that the cell is fully turgid. This type of diffusion is called osmosis, and takes place through a partially permeable membrane. The water moves from a dilute solution to a concentrated solution. This stops when the levels of water in each solution are equal. The experiment we are about to do will prove that osmosis takes place, and that it takes place in a living cell. We will then attempt to find out the percentage of sugar within a potato. Preliminary Experiments Viskin tubing is a special kind of membrane, as it has millions of tiny holes in...
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