Introduction to Enzymes

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Introduction to Enzymes

  1. 1. Launch <ul><li>Describe something that is extremely difficult for you to accomplish. </li></ul><ul><ul><li>Ex: taking a test or moving a couch. </li></ul></ul><ul><li>1. What would make this task easier? </li></ul><ul><li>2. What happens to ice when you leave on the counter? </li></ul><ul><li>3. List two ways to speed up what happens in #2. </li></ul>
  2. 2. IWBAT summarize the role of enzymes in chemical reactions
  3. 3. <ul><li>http://www.youtube.com/watch?v=qDEVBMldiY8 </li></ul>
  4. 4. <ul><li>Chemical Reactions change substances into new substances. </li></ul>
  5. 5. <ul><li>Activation Energy: the amount of energy needed to start a chemical reaction </li></ul>
  6. 6. <ul><li>How much activation energy was needed to melt the ice cube? </li></ul><ul><li>How did we change the amount of activation energy needed? </li></ul>
  7. 7. <ul><li>Enzymes (specialized proteins in our bodies) LOWER the activation energy of specific reactions. </li></ul><ul><li>Therefore ENZYMES make it easier for chemical reactions to occur in our bodies. </li></ul>
  8. 9. <ul><li>When an enzyme is involved reactions can happen much faster. </li></ul>
  9. 10. <ul><li>Each enzyme can only help along one reaction. This depends on the shape of the active site. </li></ul>
  10. 11. <ul><li>EX. </li></ul><ul><li>Questions </li></ul><ul><li>What is the function of the mitochondria? </li></ul>Notes. Mitochondria: …… ex. …..
  11. 12. <ul><li>IMOW: Chemical reaction </li></ul><ul><li>IMOW: Activation Energy </li></ul><ul><li>Connection between enzymes, activation energy, and chemical reactions </li></ul><ul><li>Explain how enzymes work (active site, specific) </li></ul>
  12. 13. <ul><li>Complete assignment on a separate piece of paper </li></ul>

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