To demonstrate osmosis

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Basic Biology
Published at : 27 Dec 2021

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• Visking tubing (which acts as a semi permeable membrane) is soaked in water to make it easier to open.
• Two lengths of visking tubing are then cut. One of the tubes is filled with distilled water the other with a sucrose solution.
• Both are then tied off and dried, the mass of each is then recorded.
• The tubes are then placed in distilled water for 15 mins. Both are removed, dried and the mass is measured and recorded again.
Result: Visking tubing with sucrose in it has an increased mass showing osmosis occurred.

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