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How Enzymes Work Click here for audio
How Enzymes Work (p. 61 in INB) <ul><li>A substrate binds to an enzyme’s active site. </li></ul><ul><li>The enzyme weakens...
Lock and Key Analogy Click here for audio
Lock and Key Analogy (p. 61 in INB) <ul><li>Enzymes are substrate-specific. </li></ul><ul><li>The lock is the enzyme and t...
The Breakdown of Hydrogen Peroxide (p. 61 in INB) <ul><li>2H 2 O 2  ----->  2H 2 O + O 2  </li></ul><ul><li>Hydrogen perox...
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How enzymes work

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How enzymes work

  1. 1. How Enzymes Work Click here for audio
  2. 2. How Enzymes Work (p. 61 in INB) <ul><li>A substrate binds to an enzyme’s active site. </li></ul><ul><li>The enzyme weakens chemical bonds in the substrate. </li></ul><ul><li>The substrate breaks down into two smaller molecules. </li></ul><ul><li>The products are released from the active site. </li></ul><ul><li>The enzyme remains unchanged and is not used up in the reaction. </li></ul>
  3. 3. Lock and Key Analogy Click here for audio
  4. 4. Lock and Key Analogy (p. 61 in INB) <ul><li>Enzymes are substrate-specific. </li></ul><ul><li>The lock is the enzyme and the key is the substrate. </li></ul><ul><li>Only the correctly sized key (substrate) fits into the key hole (active site) of the lock (enzyme) . </li></ul>
  5. 5. The Breakdown of Hydrogen Peroxide (p. 61 in INB) <ul><li>2H 2 O 2 -----> 2H 2 O + O 2 </li></ul><ul><li>Hydrogen peroxide water oxygen </li></ul>

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