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74 how enzymes work substrate the specific reactant

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74 How Enzymes Work Substrate - The specific reactant acted upon by an enzyme Active Site - The substrate fits into a particular site This is were the reaction takes place 75 Binding Specificity Even when different substrate molecules are present, only those that have the specific shape complementary to the active site are able to bind with the enzyme's active site. 76 Induced Fit Animation When an enzyme binds to the appropriate substrate, subtle changes to the shape of the active site occur 77 Enzymes Enzyme Denaturation Each enzymes has an optimum pH and temperature. pH outside the optimum range will change the shape of the enzyme Temperatures that are too high will change the shape of the enzyme When an enzyme losses its shape it no longer functions 78
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P h and Enzyme Activity 79 Temperature & Enzyme Activity 80 p H Change & Enzymatic Function When the pH changes, the active site progressively distorts and affects enzyme function 81 Check for Understanding For the reaction below, label the reactants, products, and the yield arrow CH4 + 2O2 ! CO2 + 2 H2O What is the function of an enzyme? What is a substrate? What is the function of the active site on the enzyme? Why should you worry if your temperature gets too high? Why would our bodies induce fever if it can become dangerous if gets too high? 82
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