lecture 8 - Organotrophy Organic compounds are digested and...

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Unformatted text preview: Organotrophy Organic compounds are digested and entered the central pathway Polysaccharides Converted to glucose and eventually acetyl-CoA Lipids, amino acids and aromatic compounds Converted to acetyl-CoA Acetyl-CoA enters the TCA cycle and the electrons are transferred to the ETS to generate ATP Glycolysis The most common form of glucose catabolism Glucose is activated by phosphorylation 2 ATPs are expended. Activated phospho-sugar is then oxidized to produce 2 pyruvates 4 ATPs are generated through substrate-level phosphorylation Functions in the presence or absence of O 2 Redox reactions yield two molecules of NADH Glucose is activated by one phosphorylation reaction before converted to 6-phosphogluconate. 6-phosphogluconate is converted to 2 pyruvates. The ED pathway produces 1 ATP, 1 NADH, and 1 NADPH. Primary glycolytic pathway for gut flora , which feed on gluconate from mucus secretion. The Entner-Doudoroff Pathway 2 ATP 34 ATP 2 ATP 2 ATP Respiration Pyruvate is completely oxidized to CO 2 Respiration Requires inorganic terminal electron acceptors (most commonly O 2 ) Fermentation occurs in the absence of inorganic electron acceptors Pyruvate is first converted to acetyl-CoA Acetyl-CoA feeds into the Tricarboxylic acid cycle (TCA cycle) Electrons are passed to NADH, which are then carried to the electron transport system ucleic...
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lecture 8 - Organotrophy Organic compounds are digested and...

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