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Electron transport system stores energy how?
Stores energy from electron transfer as an ion gradient across the membrane of the cell/organelle
What is the citric acid cycle? + related processes
- a metabolic pathway involved in the chemical conversion of carbohydrates, fats and proteins into carbon dioxide and water to generate a form of usable energy.
- glycolysis and pyruvate oxidation before the citric acid cycle, and oxidative phosphorylation after it
What is glycolysis? What is precursor molecule? What is product? Where does product go?
Glycolysis - Metabolic pathway that converts glucose into pyruvate
1st Steps in the Bacterial Proton Motive Force
- Strip - oxidoreductase recieves a pair of e- (usually from NADH which gets them from organic catabolism). each e- travels through FMN + iron sulfer series and are transferred to Quinones (ubiquinone --> ubiquinol)
- energy transfer pumps out 4 H+
2nd Step in Bacterial Proton Motive Force
Pump - A Quinone recieves 2 e- from oxidoreductase (Ubiquinone is reduced to ubiquinol) and transfers them to terminal oxidase
Energy transfer pumps 2 H's out per quinone
3rd step in Bacterial Proton Motive Force
Dump - Terminal oxireductase recieves e- from quinols and transfers them to terminal electron acceptor
2 H's are pumped out
Terminal electron acceptors (4 types)
Nitrogenous, sulfer, methanogenesis (uses CO2 final acceptor), and oxygen
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