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Investigation into Effect of Surface area on Catalase activity in potato. Aim: In this investigation, my aim is to find out how the factor Surface area effects Catalase activity in a potato. Introduction Enzymes are globular shaped proteins. They act as catalysts as they help speed up reactions and remain unchanged themselves. Enzymes are composed of amino acids, arranged in chains, which are the n moulded into 3-dimensional shapes. The molecules which the enzymes breakdown, are often referred to as substrates. The shape of the substrate is complimentary to the enzyme's active site. The enzyme has a very specific 3D shape into which only one specificly shaped substrate can fit into it. After the substrate has taken its place in the active site, it is broken down by the enzyme into a product or products. Now, the product(s) have to leave the site as they do not have the complimentary shape anymore. Cells have an...

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