BIOL 116 Chapter 3 (pages 55-59), 9.1-9.7: Learning Outcomes for Cellular Respiration
5 Dec 2016
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Chapter 3, page 55-59 and chapter 9. 1-9. 7 (learning outcomes) Chapter 3 (1) understand how enzymes function as catalysts. They lower activation energy of the transition state by stabilizing them = increase in rxn rate (2) explain how enzymes can be regulated by competitive inhibition and allosteric regulation. Competitive inhibition: molecules with similar size/shape to substrate attach to active site (it competes with the substrate for access) Allosteric regulation/ activation: substrate attaches itself to somewhere beside active site (makes it inaccessible) and changes enzyme"s shape. Figure 3. 21 enzyme action can be analyzed as a three-step process. Pearson canada inc. (3) explain the saturation kinetics of enzyme-catalyzed reactions. In a chemical reaction, there is a repulsion between electrons when a bond forms between them, shown by the large peak; reactants need to collide in a specific orientation and have enough kinetic energy to overcome the repulsion.
