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1 5 Enzymes

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1 5 Enzymes

  1. 1. Launch <ul><li>Please find your seats and answer the following questions. If you have an issue with your seat, ask me AFTER class </li></ul><ul><li>I want to test whether or not the amount of time you practice skateboarding makes you better at doing tricks </li></ul><ul><li>1. Form a hypothesis </li></ul><ul><li>2. What is the independent variable? </li></ul><ul><li>3. What is the dependent variable? </li></ul>
  2. 2. Enzymes and pH
  3. 3. Enzyme Video <ul><li>http://www.youtube.com/watch?v=V4OPO6JQLOE </li></ul>
  4. 4. Remember <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. 7. Enzymes depend on… <ul><li>Temperature </li></ul><ul><li>Ionic Conditions </li></ul><ul><li>pH </li></ul>
  7. 8. pH <ul><li>pH is a measure of the acidity or basicity of a solution </li></ul><ul><li>Measured on a pH scale </li></ul>
  8. 9. A pH of….. <ul><li>0-6 is considered acidic </li></ul><ul><li>6-8 is considered neutral </li></ul><ul><li>8-14 is considered basic </li></ul>
  9. 10. <ul><li>RAFT </li></ul>
  10. 11. RAFT: DUE Friday <ul><li>You are an enzyme </li></ul><ul><li>You are writing to a substrate </li></ul><ul><li>The format is a letter </li></ul><ul><li>Include all information in #1-6 (and correct information) </li></ul>
  11. 12. RAFT: DUE Friday <ul><li>Brainstorm for your letter </li></ul><ul><li>Write, write, write! </li></ul><ul><li>Then, make it look nice! Include a picture of the enzyme and its substrate </li></ul>

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