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Biology Coursework - Enzymes The effect of temperature on the action of the enzyme trypsin Aim To investigate the activity of trypsin under the change of temperature. Introduction Enzymes are catalysts in the body that speed up the breakdown of food, and are essential in the digestive system. Although food can be broken down by molecules colliding with it, the process is speeded up greatly by enzymes, a type of catalyst. We know from previous knowledge that enzymes are proteins, and they require the presence of other compounds, or co factors, before their catalytic ability can be exerted. Enzymes can be used more that once and are replaced only after a period of time when they are denatured. They are all specific to certain foods, but some are more specific than others. The lock and key theory of enzymes is that each enzyme has a specific 'key' shape, which will only fit into one sort...

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