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Potato and Osmosis Investigation.
Member rating: No Rating | Words: | Submitted: Wed Apr 28 2004
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Biology Coursework: Potato and Osmosis Investigation. PLANNING: (P) Some background Information: Water Potential and Living Plant Cells Plant Cells in Pure Water: If plant cells are placed in pure water (a hypotonic solution) water will initially move into the cells. After a period of time the cells will become turgid. Turgor pressure is the pressure exerted against the cell wall by contents of the cell. At first most water movement is into the cell. As the turgor pressure increases water will begin to diffuse out of the cell at a greater rate, eventually equilibrium will be reached and water will enter and leave the cell at the same rate. Free Energy and Water Potential: Free energy can be simply defined as the energy available (without temperature change) to do work. Chemical potential of a substance is the free energy per mole of that substance. Water potential is the chemical potential of water...
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