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To investigate the effect of varying concentration of glucose solutions on the osmotic activity between the solution and potato slices.
Member rating: No Rating | Words: | Submitted: Wed Aug 13 2003
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INVESTIGATING OSMOSIS IN PLANT CELLS AIM: To investigate the effect of varying concentration of glucose solutions on the osmotic activity between the solution and potato slices. SCIENTIFIC THEORY: Osmosis is defined as the net movement of water molecules from a region of high concentration to a region of low concentration of water, through a partially permeable membrane, which only lets smaller molecules through. This can also be described as movement down the concentration gradient. The molecules continue to diffuse through the membrane until both sides reach a state of equilibrium. This is also known as the isotonic point when the molecules are equally distributed on both sides of the membrane so that no one area has a higher or lower concentration than the other. Plant cells have a strong cell wall and a partially permeable cell membrane around them. When cells are surrounded by a solution more dilute than their own, (hypotonic solution-with more water...
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