4 up to a point the rate of an enzymatic reaction

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Concept 8.4 Up to a point, the rate of an enzymatic  reaction will increase with temperature - eventually it will drop because of  thermal agitation and protein denaturing
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    Concept 8.4 Most human enzymes function best at 35- 40  o C. - some bacteria that live in hot springs  have proteins that work best at 70  o C. Most human enzymes also work best at 6- 8 pH. - pepsin in the stomach work best at PH  2
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    Concept 8.4
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    Concept 8.4 Certain chemicals can selectively inhibit  the activity of specific enzymes Competitive inhibitors : reduce enzyme  activity by blocking the substrate from  binding to the active site - can be overcome by increasing  [substrate]
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    Concept 8.4 Noncompetitive inhibitors : impede the  reaction by attaching to another part of  the enzyme, thus changing its shape - ex. toxins and poisons 
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  • Spring '10
  • Siller
  • Biology

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