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The terms aerobic respiration, anaerobic respiration and fermentation (substrate-level phosphorylation) do not refer to primary nutritional groups, but simply reflect the different use of possible electron acceptors in particular organisms, such as O 2 in aerobic respiration, or nitrate (NO − 3), sulfate (SO 2−
The FNR (defective in fumarate and nitrate reduction) protein of E. coli is an oxygen – responsive transcriptional regulator required for the switch from aerobic to anaerobic metabolism [1]. "Type III mutants, originally frdB , were designated fnr because they were defective in fumarate and nitrate reduction and impaired in their ability to ...
Aerobic denitrification, or co-respiration, the simultaneous use of both oxygen (O 2) and nitrate (NO − 3) as oxidizing agents, performed by various genera of microorganisms. [1] This process differs from anaerobic denitrification not only in its insensitivity to the presence of oxygen, but also in its higher potential to form nitrous oxide ...
Some strains are capable of 'aerobic denitrification', the complete dissimilation of nitrate to dinitrogen (or nitrous oxide) under aerobic growth conditions. The microbe also can oxidize ammonia to nitrite while grown on organic energy sources, a process known as 'heterotrophic nitrification'. Coupled to denitrification, heterotrophic ...
When we think of ultra-processed foods, we typically think of things like processed meats (hot dogs, deli meats, chicken nuggets, etc.), packaged snacks, packaged baked goods, ice cream, soda and ...
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Whereas in aerobic respiration the oxidant is always oxygen, in anaerobic respiration it varies. Each oxidant produces a different waste product, such as nitrite, succinate, sulfide, methane, and acetate. Anaerobic respiration is correspondingly less efficient than aerobic respiration.