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To investigate a factor which might effect the movement of water into and out of potato cells. And test this factor by recording the change in mass of the potatoes.
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Biology AT1 Osmosis in Potato Cells The problem To investigate a factor which might effect the movement of water into and out of potato cells. And test this factor by recording the change in mass of the potatoes. Background knowledge Water is diffused during the osmosis process, water molecules diffuse from a high water concentration to a lower water concentration. I have done a similar experiment before using visking tubing instead of potatoes. I used two test tubes; test tube A had salt solution in the visking tubing and water in the surrounding test tube, where as test tube B had salt solution surrounding the visking tubing in the test tube and water in the visking tubing. Osmosis occurred in both test tubes, but the tubing in test tube A increased in mass, where as the tubing in B decreased in mass. This proves that the osmosis process took place because the water molecules...
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