bio 181 - Factors Affecting Enzyme Function Author: Peter...

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Factors Affecting Enzyme Function Author: Peter Somoza Lab partners: Jennifer, Lucy, and Instructor: Herb Wildey Biology 181 Lab Date Work Performed: July 14, 2008 Date Report Submitted: August 4, 2008
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Introduction: Enzymes are proteins that consist of long chains of amino acids held together by peptide bonds. They are present in all living cells, where they perform a vital function by controlling the metabolic processes where nutrients are converted into energy. Essentially, enzymes take part in the breakdown of food, macromolecules, into simpler compounds. Enzymes act as catalysts that lower the activation energy, the amount of energy needed to activate a reaction. Enzymes are also very specific. That is to say, each enzyme can break down one particular compound. This is done by binding to a substrate on a distinctively shaped active site. There are three factors that affect enzyme function: temperature, pH, and substrate and enzyme concentrations. Every enzyme has an optimal temperature and pH level at which the enzyme is most stable, most
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bio 181 - Factors Affecting Enzyme Function Author: Peter...

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