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An investigation to find out the concentration of the cell sap of potato tuber cells.
Member rating: No Rating | Words: | Submitted: Mon Oct 20 2003
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AN INVESTIGATION TO FIND OUT THE CONCENTRATION OF THE CELL SAP OF POTATO TUBER CELLS PLAN -An Investigation To Find Out The Concentration Of The Cell Sap Of Potato Tuber Cells This experiment is based on the scientific theory of osmosis. Background Information Osmosis is the passive (requires no energy) net movement of water molecules down a concentration gradient across a semi-permeable membrane. The process makes plants swell up to make them turgid and is useful for giving support to green plants and for opening stomatal guard cells so photosynthesis can occur. When plant cells are placed in water or very weak sugar solutions they gain mass. This is because the plant cells have a higher concentration of sugar than their surroundings so the water molecules in the surrounding solution, move down a concentration gradient into the plant cells. However, when plant cells are placed in solutions of the same concentration as the...
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