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To determine the concentration of the fluid in potato cells.
Member rating: No Rating | Words: | Submitted: Thu Jul 11 2002
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Osmosis in potato cells Aim: To determine the concentration of the fluid in potato cells. Background Knowledge: `Osmosis is the passing of water molecules from a weaker solution to a stronger solution through a partially permeable membrane'. Every cell has a membrane which separates the inside contents of the cell from the outside. The membrane has tiny little holes in it to allow small molecules to pass through, although if the molecules are too big they can't. Text Box: Fig. 1 This type of cell membrane is called a partially permeable membrane. If potato is put in water from a higher to a lower concentration, the water will be absorbed by the potato. If potato is put in a strong sugar solution, the water is taken, or moves out of the potato. There are some key variables in the experiment. The first is to keep the exact same amount/weight...
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