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Biology Coursework- Decomposing Hydrogen Peroxide Aim: They are trying to find the rate of reaction of hydrogen peroxide at different temperatures. Prediction: I predict that at a higher temperature the enzyme will react quicker. It will react fastest at 37°-47° as this is body temperature, which is the temperature that they are designed to work at. However if exceeds this temperature then it will become too hot for the enzymes to work and they will denature. As a result of this the oxygen level will drop drematicly. Results: Temperature when tested (°c) Volume of Oxygen (cm³) Average Volume of Oxygen (cm³) 3 1.3 1.2 3 1.1 24 5 4.8 24 0.2 24 4.6 42 18.7 18.8 42 18.9 58 0.5 0.45 58 0.4 84 0.2 0.25 84 0.3 Analysing & Considering Evidence During the experiment the temperature was increased. As it increased the volume of oxygen went up, but as the temperature increased from 42 °C to 58 °C the volume of oxygen decreased dramatically from 18.9cm3 to 0.5cm3! After this it then slowly decreases to nothing. This is because enzymes like hydrogen...

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