Anaerobic respiration is a form of respiration using electron acceptors other than oxygen. Although oxygen is not used as the final electron acceptor, the process still uses a respiratory electron transport chain; it is respiration without oxygen. In order for the electron transport chain to function, an exogenous final electron acceptor must be present to allow electrons to pass through the system. In aerobic organisms, this final electron acceptor is oxygen. Molecular oxygen is a highly oxidizing agent and, therefore, is an excellent acceptor. In anaerobes, other less-oxidizing substances such as sulfate, nitrate, sulfur, or fumarate are used. These terminal electron acceptors have smaller reduction potentials than O2, meaning that less energy is released per oxidized molecule. Anaerobic respiration is, therefore, in general energetically less efficient than aerobic respiration. Anaerobic respiration is used mainly by prokaryotes that live in environments devoid of oxygen. Many anaerobic organisms are obligate anaerobes, meaning that they can respire only using anaerobic compounds and will die in the presence of oxygen.
The numerical value of anaerobic respiration in Chaldean Numerology is: 3
The numerical value of anaerobic respiration in Pythagorean Numerology is: 5
Images & Illustrations of anaerobic respiration
Find a translation for the anaerobic respiration definition in other languages:
Select another language:
Discuss these anaerobic respiration definitions with the community:
Word of the Day
Would you like us to send you a FREE new word definition delivered to your inbox daily?
Use the citation below to add this definition to your bibliography:
"anaerobic respiration." Definitions.net. STANDS4 LLC, 2017. Web. 26 Sep. 2017. <http://www.definitions.net/definition/anaerobic respiration>.