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The aim of this experiment is to investigate how changing the concentration of a solution will affect the rate of osmosis. I intend to use different glucose solutions as my variable and potato cylinders as my living organism.
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COURSEWORK Introduction: The aim of this experiment is to investigate how changing the concentration of a solution will affect the rate of osmosis. I intend to use different glucose solutions as my variable and potato cylinders as my living organism. Hypothesis: I predict that the higher the glucose concentration is, the lesser the potato would weigh. This is because the potato contains more water than the glucose solution therefore it leaves the potato and goes into the solution in an attempt to even up the concentration on each side of the membrane. Biological Knowledge: 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. A partially permeable membrane is one with very small holes. They are so small they can only allow water molecules to pass through unlike bigger molecules such as glucose. An example of a partially permeable membrane...
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