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To find out the concentration of salt inside potato cells by conducting an experiment that uses the principles of osmosis.
Member rating: No Rating | Words: | Submitted: Thu Jul 11 2002
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Aim: To find out the concentration of salt inside potato cells by conducting an experiment that uses the principles of osmosis. Background Information: Osmosis is the movement of water molecules from a high concentration to a low concentration until equilibrium is reached. This only involves the movement of water and is therefore different to diffusion. A situation where osmosis is extensively used is in plants, where they use it to get water from the roots to the rest of the plant. This also ensures the efficiency of the plants hydrostatic skeleton. The principle for this type of transport, being only water based, is the use of a selectively permeable membrane. The membrane consists of phospholipids. These have to main components, a hydrophilic head and a hydrophobic tail. These molecules then arrange themselves into a bilayer. This bilayer has a hydrophobic interior, which forms the basic anatomy of the membrane. Water particles...
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