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Investigating how the Concentration of Hydrogen Peroxide Affects the Rate of Enzyme (Catalase) Activity.
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Roshan Sivapalan 11 R - Mr Murray Biology AT 1 Investigation Investigating how the Concentration of Hydrogen Peroxide Affects the Rate of Enzyme (Catalase) Activity Introduction: In general, enzymes are proteins produced by living cells; they act as catalysts in biochemical reactions. ..A catalyst affects the rate of a chemical reaction. ..One consequence of enzyme activity is that cells can only carry out complex chemical activities at relatively low temperatures. In an enzyme-catalysed reaction, the substance to be acted upon (the substrate-yeast) binds reversibly to the active site of the enzyme. . Lock & Key Theory: Enzymes are large proteins that increase the speed of chemical reactions.. In their globular structure, one or more polypeptide chains 'twist and fold', to bring together a small number of amino acids to form the active site, or the location on the enzyme where the substrate binds and the reaction takes place. Enzyme and substrate fail to bind if their...
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