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Investigate the factors affecting the rate of breakdown of sucrose by the enzyme sucrase (invertase).
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GCSE Biology Coursework Investigate the factors affecting the rate of breakdown of sucrose by the enzyme sucrase (invertase) Avninder Gidar Planning Definition of enzyme An enzyme is a biochemical catalyst that enormously accelerates a chemical reaction. Enzymes are complex protein molecules highly specific to particular reactions. (Taken from the Collins Dictionary of Medicine) How enzymes work Enzymes have an area - usually thought of as a pocket-shaped gap in the molecule - which is called the active site. The substrate (or substrates) fits/fit into the active site, but enzymes are specific so only a certain substrate will fit a particular enzymes active site. There are several types of enzyme which contribute to different types of biochemical reaction. The enzyme speeds up the process of conversion of substrates into products. Although the enzyme joins with the substrate for a short while, the enzyme and substrate split apart afterwards, releasing the enzyme. Thus the enzyme is not used up in the...
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