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Charlotte Mortlock Enzyme investigation Dec 01 In this investigation we are trying to find out how variables affect the rate of oxygen and water produced in hydrogen peroxide. The enzyme that we are working with is called, catalyse. This can be found in living things, for example- it is found in the human liver. As we know there are all sorts of enzymes, all uniquely designed to break down, different substances. Our enzyme, catalyse, is designed for the breaking down of a toxic substance, known as Hydrogen Peroxide, into water and oxygen. The chemical equation for this is- 2H2O2 ? 2H2O+O2. Catalyse is also present in yeast. We will be using yeast that has been immobilised into beads. We will be looking at the possible variables, and deciding on our chosen one. The variable will help us to investigate what affects the speed of reaction. The possible variables are- * Temperature * Size of beads * Concentration * Ph Our chosen variable...

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