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microbio- Ch. 11.2
Chemoorganotrophic fueling processes
| Using organic molecules (chemicals) as electron donors | ¥ Chemoorganotrophic |
| Process for Chemoorganotrophic | Ð aerobic respiration Ð anaerobic respiration fermentation |
| ___________ process Resp ___ As electrons pass through the electron transport chain to the final electron acceptor, a _______ ______ _____ (______) is generated and used to________ _______ | Chemoorganic Fueling Processes - Respiration – 2 proton motive force (PMF) synthesize ATP |
| Most respiration involves use of an__________ __________ _________ | electron transport chain |
| ____________ ____________ Processes - Respiration – ___ uses aerobic respiration in which the terminal acceptor is ______ or anaerobic respiration in which terminal acceptor is __________ such as..... | Chemoorganic Fueling 2 Oxygen exogenous ¥ NO3-, SO42-, CO2, Fe3+, or SeO42- |
| ________ acceptors may also be used in anaerobic resp. | organic |
| ATP made primarily by __________ __________ | oxidative phosphorylation |
| Generally yields in Anaerobic ________ energy because....... | less E0 of electron acceptor is less positive than E0 of O2 |
| Ð use of nitrate as terminal electron acceptor, making it unavailable to cell for assimilation or uptake | ¥ Dissimilatory nitrate reduction |
| Ð reduction of nitrate to nitrogen gas Ð in soil, causes loss of soil fertility | ¥ Denitrification |
| Respiration uses ____________ ______________, and the ATP produced from _________ __________ ________ formed by transport of electrons | Oxidative phosphorylation proton motive force |
| Fermentation uses ___________-____________ ____________ ATP ________ ________ from an energy-rich intermediate | Substrate-level phosphorylation --- directly synthesized |
| hemoorganic Fermentation Uses an _________ electron acceptor which is usually an _________ of the pathway used to ________ the organic energy source e.g., ________ | endogenous intermediate oxidize pyruvate |
| Chemoorganic Fermentation Does not involve the use of an ________ _________ ________ nor the generation of a ________ ________ _________ATP synthesized only by ___________ - ________ __________ | electron transport chain proton motive force substrate-level phosphorylation |
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Oshia94