chapter 5 hybrid with sound.pptx - Chapter 5 Microbial Metabolism Metabolism sum of all chemical reactions with a living organism 1 Catabolism 2

chapter 5 hybrid with sound.pptx - Chapter 5 Microbial...

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Chapter 5 Microbial Metabolism Metabolism- sum of all chemical reactions with a living organism 1. Catabolism 2. Anabolism
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Enzymes Figure 5.2
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Oxidation-Reduction Oxidation Reduction Redox Redox reactions are used in catabolism to extract energy Figure 5.9
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How is energy extracted from these compounds? Much of the energy released is in the form of ATP 3 types of phosphorylation: 1. Substrate-level phosphorylation
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Types of phosphorylation cont. 2. Oxidative Phosphorylation Requires: organic compounds electron carriers (NAD+ or FAD+) proton gradient w/an ETC terminal electron acceptor - the entire process of electron flow and ATP production via the ETC is called chemiosmosis
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Types of phosphorylation cont. 3. Photophosphorylation
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Carbohydrate Catabolism Glycolysis (Embden-Meyerhof pathway) Krebs cycle/Citric acid cycle/TCA Electron Transport Chain
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Glycolysis Oxidation of glucose into pyruvic acid • 10 step process that occurs in the cytoplasm • Converts each molecule of glucose into 2 molecules of pyruvic acid • Substrate-level phosphorylation produces 2 molecules of ATP
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Glycolysis “condensed version”
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