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BIOLOGY COURSEWORK 2004 Planning Aim: The aim is to investigate the volume of amino acid produced from broken down proteins, from the different concentrations of enzyme protease. By carrying out an experiment, we can find out whether the varied concentration on the enzyme had an effect on the amount of protein broken down, and therefore the volume of amino acid produced. Scientific Knowledge: What are enzymes? Enzymes are proteins that act as catalysts. They speed up the chemical reactions which occur inside living things. Without them, all reactions would be far too slow, and living organisms would not be able to function. Enzymes are extremely efficient at doing their job. Some of the chemical reactions, which take place in our cells, for example in the liver, produce a by-product called hydrogen peroxide. Hydrogen peroxide is very poisonous and it must be got rid of rapidly. Under the influence of an enzyme called catalase, the...

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