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To Investigate the Rate of Osmosis In Potatoes and Find Out the Sucrose Concentration of the Potato.
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INTRODUCTION Aim: To investigate the rate of osmosis in potatoes and find out the sucrose concentration of the potato. Osmosis is the movement of water molecules from a solution of high water potential to a solution of low water potential across a partially permeable membrane. Water potential is the ability at a solution to lose water. A concentrated solution has a low water potential and a dilute solution has a high water potential. The diagram below illustrates the concept of osmosis. The diagram above shows a concentrated sucrose solution and a dilute sugar solution separated by a partially permeable membrane. This membrane allows small molecules, such as water, to pass through it but it does not allow larger molecules like sucrose through it. The water moves from the right to the left so that the sucrose concentration on the left is decreased. The concentrated solution becomes more dilute due to the extra water molecules...
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