MOL CLASS 20 - Enzymes as Biological Catalysts (Part 1) (class notes S11)

MOL CLASS 20 - Enzymes as Biological Catalysts (Part 1) (class notes S11)

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1 NATURAL SCIENCE II: MOLECULES OF LIFE Spring 2011 Class 20 – Monday, April 18 Enzymes as Biological Catalysts – Part 1 Reading: Chapter 19, pp. 1 – 15 Next class: Chapter 19, pp. 16 – 24 OUTLINE (1) (2) The catalytic converter (3) Inorganic and biological catalysts (4) The biological importance of enzymes (5) How does HIV replicate in cells? (6) How does HIV protease work
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ANNOUNCEMENTS
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3 REVIEW (1) PRODUCTS REACTANTS TRANSITION STATE
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4 REVIEW (2) Reactants Products Transition state E a E rxn energy progress of reaction REACTION WITHOUT A CATALYST (a) Reactants Products Transition state E a E rxn progress of reaction REACTION WITH A CATALYST (b)
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5 THE CATALYTIC CONVERTER When gasoline doesn’t burn efficiently in an engine, it can release carbon monoxide (CO) . A catalytic converter accelerates the conversion of CO to CO 2 . 2 CO + O 2 2 CO 2
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6 STEPS IN A METAL-CATALYZED REACTION
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7 TWO TYPES OF CATALYSTS
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8 CATALASE – a very efficient enzyme
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MOL CLASS 20 - Enzymes as Biological Catalysts (Part 1) (class notes S11)

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