Salma Ahmed
English Lit. GCSE Student
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Investigating Osmosis
- Words:
- 1699
- Submitted:
- Thu Jul 11 2002
Have a little read: ... Osmosis is the movement of water molecules across a partially permeable membrane from a region of high water concentration to a region of low water concentration. It can be affected by several different variables including concentration of sugars. In this investigation I will be exploring the effect of varying concentration of sucrose sugar solution on the amount of osmotic activity between the solution and the potato chip of a given size. Osmosis is basically a special kind of diffusion involving water molecules, which occurs when two solutions are separated by a partially permeable membrane. The water diffuses from the weaker solution to the stronger solution. Tiny holes in the membrane allow small water molecules to pass through, but the glucose molecules are too large to pass through the semi- permeable membrane. Plant cells have a cell wall surrounding them, this is very strong. When they take in water by osmosis they
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