Examples of anaerobic respiration in the following topics:
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- In anaerobic respiration, a molecule other than oxygen is used as the terminal electron acceptor in the electron transport chain.
- Anaerobic respiration is the formation of ATP without oxygen.
- Many different types of electron acceptors may be used for anaerobic respiration.
- Organic compounds may also be used as electron acceptors in anaerobic respiration.
- A molecule other than oxygen is used as the terminal electron acceptor in anaerobic respiration.
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- Anaerobic respiration utilizes highly reduced species - such as a proton gradient - to establish electrochemical membrane gradients.
- This then drives the synthesis of adenosine triphosphate (ATP) and is maintained by the reduction of oxygen, or alternative receptors for anaerobic respiration.
- Cellular respiration (both aerobic and anaerobic) utilizes highly reduced species such as NADH and FADH2 to establish an electrochemical gradient (often a proton gradient) across a membrane, resulting in an electrical potential or ion concentration difference across the membrane.
- The reduced species are oxidized by a series of respiratory integral membrane proteins with sequentially increasing reduction potentials, the final electron acceptor being oxygen (in aerobic respiration) or another species (in anaerobic respiration).
- Proton reduction is important for setting up electrochemical gradients for anaerobic respiration.
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- Denitrification is a type of anaerobic respiration that uses nitrate as an electron acceptor.
- In anaerobic respiration, denitrification utilizes nitrate (NO3-) as a terminal electron acceptor in the respiratory electron transport chain.
- Denitrification is a widely used process; many facultative anaerobes use denitrification because nitrate, like oxygen, has a high reduction potential
- In general, it occurs where oxygen is depleted and bacteria respire nitrate as a substitute terminal electron acceptor.
- When faced with a shortage of oxygen, some rhizobia species are able to switch from O2-respiration to using nitrates to support respiration.
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- Methanogenesis is a form of anaerobic respiration that uses carbon as a electron acceptor and results in the production of methane.
- Methanogenesis, or biomethanation, is a form of anaerobic respiration that uses carbon as the terminal electron acceptor, resulting in the production of methane.
- Without methanogenesis, a great deal of carbon (in the form of fermentation products) would accumulate in anaerobic environments.
- In the rumen, anaerobic organisms, including methanogens, digest cellulose into forms usable by the animal.
- Acetate is broken down to methane by methanogenesis, a type of anaerobic respiration.
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- Sulfate reduction is a type of anaerobic respiration that utilizes sulfate as a terminal electron acceptor in the electron transport chain.
- Sulfate reduction is a type of anaerobic respiration that utilizes sulfate as a terminal electron acceptor in the electron transport chain.
- All sulfate-reducing organisms are strict anaerobes.
- The hydrogen produced during fermentation is actually what drives respiration during sulfate reduction.
- Some sulfate-reducing bacteria play a role in the anaerobic oxidation of methane (CH4 + SO42- → HCO3– + HS– + H2O).
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- Bacteria that perform anaerobic fermentation often partner with methanogenic archea bacteria to provide necessary products such as hydrogen.
- A frequently cited example of syntrophy are methanogenic archaea bacteria and their partner bacteria that perform anaerobic fermentation.
- Methanogenesis in microbes is a form of anaerobic respiration, performed by bacteria in the domain Archaea.
- Unlike other microorganisms, methanogens do not use oxygen to respire; but rather oxygen inhibits the growth of methanogens.
- Without methanogenesis, a great deal of carbon (in the form of fermentation products) would accumulate in anaerobic environments.
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- Methanogens are an important group of microoraganisms that produce methane as a metabolic byproduct under anaerobic conditions.
- Methanogenic archaea, or methanogens, are an important group of microoraganisms that produce methane as a metabolic byproduct under anaerobic conditions.
- Methanogens play a vital ecological role in anaerobic environments by removing excess hydrogen and fermentation products produced by other forms of anaerobic respiration.
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- Ferric iron is an anaerobic terminal electron acceptor, with the final enzyme a ferric iron reductase.
- Ferric iron (Fe3+) is a widespread anaerobic terminal electron acceptor both for autotrophic and heterotrophic organisms.
- Ferrous iron is a soluble form of iron that is stable at extremely low pHs or under anaerobic conditions.
- Although ferric iron is the most prevalent inorganic electron acceptor, a number of organisms (including the iron-reducing bacteria mentioned above) can use other inorganic ions in anaerobic respiration.
- Outline the purpose of iron oxidation and the three types of ferrous iron-oxidizing microbes (acidophiles, microaerophiles and anaerobic photosynthetic bacteria)
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- Obligate aerobes require oxygen for aerobic cellular respiration.
- In a process known as cellular respiration, these organisms use oxygen to oxidize substrates (for example sugars and fats) in order to obtain energy.
- Facultative anaerobes can use oxygen, but also have anaerobic (i.e. not requiring oxygen) methods of energy production.
- An anaerobic organism or anaerobe is any organism that does not require oxygen for growth.
- And finally, facultative anaerobes, which can grow without oxygen but can utilize oxygen if it is present.
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- Respiration is one of the key ways a cell gains useful energy to fuel cellular activity.
- Respiration is one of the key ways a cell gains useful energy to fuel cellular activity .
- Chemically, cellular respiration is considered an exothermic redox reaction.
- Aerobic metabolism is up to 15 times more efficient than anaerobic metabolism, which yields two molecules ATP per one molecule glucose.
- Glycolysis takes place in the cytosol, does not require oxygen, and can therefore function under anaerobic conditions.