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Volume of oxygen given off in the reaction between catalase and hydrogen peroxide. Introduction Catalase is a biological enzyme, which helps to speed up the reaction between catalase (celery) and hydrogen peroxide. The active site is contained within the enzyme and this is the important part, once the substrate is locked into the active site the reaction takes place then the products will be released with the enzyme moving on to another substrate. Enzymes are very specific to the reaction that they take place in and can only work on certain products this is called the 'lock and key' method. This method helps to speed up the reactions and to allow the correct substrate to interact with the correct enzyme. Prediction When the test is run I predict that the higher the concentration of catalase then the faster the reaction will occur due to the increased concentration of the enzymes...

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