This link has been bookmarked by 4 people . It was first bookmarked on 09 May 2008, by Chris Heumann.
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17 Sep 11
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01 Mar 11
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Osmosis is the passage of water from a region of high water concentration through a semi-permeable membrane to a region of low water concentration.
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Semi-permeable membranes are very thin layers of material (cell membranes are semi-permeable) which allow some things to pass through them but prevent other things from passing through.
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Plant cells become "turgid" when they are put in dilute solutions.
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When plant cells are placed in concentrated sugar solutions they lose water by osmosis and they become "flaccid"
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In very dilute solutions, animal cells swell up and burst:
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In concentrated solutions, water is sucked out of the cell by osmosis and the cell shrinks.
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19 Sep 09
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09 May 08
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