Difference between revisions of "Critical oxygen pressure"
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|description=The '''critical oxygen pressure''', ''p''<sub>c</sub>, is defined as the partial oxygen pressure, ''p''<sub>O2</sub>, below which [[aerobic]] catabolism (respiration or oxygen consumption) declines significantly. If [[anaerobic]] catabolism is activated simultaneously to compensate for lower aerobic ATP generation, then the '''[[limiting oxygen pressure]]''', ''p''<sub>l</sub>, is equal to the ''p''<sub>c</sub>. In many cases, however, the ''p''<sub>l</sub> is substantially lower than the ''p''<sub>c</sub>. | |description=The '''critical oxygen pressure''', ''p''<sub>c</sub>, is defined as the partial oxygen pressure, ''p''<sub>O2</sub>, below which [[aerobic]] catabolism (respiration or oxygen consumption) declines significantly. If [[anaerobic]] catabolism is activated simultaneously to compensate for lower aerobic ATP generation, then the '''[[limiting oxygen pressure]]''', ''p''<sub>l</sub>, is equal to the ''p''<sub>c</sub>. In many cases, however, the ''p''<sub>l</sub> is substantially lower than the ''p''<sub>c</sub>. | ||
|info=[[Gnaiger 1991 Soc Exp Biol Seminar Series]] | |info=[[Gnaiger 1991 Soc Exp Biol Seminar Series]] | ||
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{{MitoPedia concepts | |||
|mitopedia concept=Respiratory state | |||
}} | }} | ||
{{MitoPedia methods}} | {{MitoPedia methods}} | ||
{{MitoPedia O2k and high-resolution respirometry}} | |||
{{MitoPedia topics | {{MitoPedia topics | ||
|mitopedia topic= | |mitopedia topic=Substrate and metabolite | ||
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== Aerobic and anaerobic from normoxia to anoxia: oxygen availability and metabolic state == | == Aerobic and anaerobic from normoxia to anoxia: oxygen availability and metabolic state == | ||
* ''More details:'' [[Aerobic]] | * ''More details:'' [[Aerobic]] | ||
Revision as of 15:00, 8 February 2016
- high-resolution terminology - matching measurements at high-resolution
Critical oxygen pressure
Description
The critical oxygen pressure, pc, is defined as the partial oxygen pressure, pO2, below which aerobic catabolism (respiration or oxygen consumption) declines significantly. If anaerobic catabolism is activated simultaneously to compensate for lower aerobic ATP generation, then the limiting oxygen pressure, pl, is equal to the pc. In many cases, however, the pl is substantially lower than the pc.
Abbreviation: pc
Reference: Gnaiger 1991 Soc Exp Biol Seminar Series
MitoPedia concepts:
Respiratory state
MitoPedia topics:
Substrate and metabolite
Aerobic and anaerobic from normoxia to anoxia: oxygen availability and metabolic state
- More details: Aerobic
