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Biology Coursework 2003 Introduction Enzymes exist in our bodies as biological catalysts. They are there to help reactions, both chemically and biologically, happen faster and in a more efficient manner. Enzymes are created in cells but are released to work in their appropriate places in the body. These are called extracellular enzymes and include most of the digestive enzymes that help break down food in our digestive system. Other enzymes do their work inside cells. These are intracellular enzymes. They not only speed up chemical reactions inside cells, but control them too. The investigation we are looking into involves the enzyme Amylase. This exists in our bodies to break up starch molecules into smaller ones such as glucose or sugar molecules. It works in the manner shown below. The substrate will collide randomly with enzyme molecules. The grooves indented on the surface of the enzyme will fit neatly onto the soft side of...

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