Salma Ahmed
English Lit. GCSE Student
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Osmosis Lab
- Words:
- 1475
- Submitted:
- Mon Oct 13 2008
- Mark submitted by Author:
Have a little read: ... Introduction The aim of this specific lab is to determine the biological changes that occur to potato slices over a period of time in different solutions and to relate these changes to the phenomenon of osmosis. By placing pieces of a potato into solutions with different concentrations of solute, water may flow into or out of the potato. Knowing whether or not water flowed into or out of the potato will give you an idea of approximately what percentage of a potato is water. The concentration of solutes in water is low or nonexistent. Therefore, water is hypotonic to the fluid. If the potatoes are placed in a solution with a high concentration of solute compared to the potatoes, water will pass through the cell membranes into the surrounding hypertonic solution, and the potatoes will shrink, or plasmolyze. The selectively permeable membrane of potato allows water to pass through
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