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Compare the Presentation of Rebellion in 'Ninety Eighty Four' and 'Brave New World'.
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How does the concentration of substrate effect the rate of an enzyme controlled reaction? Plan In this investigation I aim to find out whether the concentration of hydrogen peroxide affects the rate at which catalyse breaks it down. The rate of reaction will be measured by how much oxygen is collected. Hydrogen Peroxide -------------------Water + Oxygen 2H O------------------- 2H O+ O Experiment List * Potato * Potato Borer * Knife * Ruler * Hydrogen Peroxide * Plastic Tub * Water * Conical Flask * Rubber Bung * Measuring Cylinder * Stop Watch Method Using potato borer, bore out 2 cylinder shaped pieces of potato. Using a ruler and knife, chop the potato cylinders into 10 1cm pieces. Measure out 50ml of hydrogen peroxide and pour into a conical flask. Fill a plastic tub, 1/2 full of water. Fill a measuring cylinder to the brim with water. Cover the end of the measuring cylinder making sure no water escapes. Tip the measuring cylinder upside down and place it into the plastic tub...
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