Calorespirometric ratio: Difference between revisions
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{{MitoPedia | {{MitoPedia | ||
|abbr=CR ratio | |abbr=CR ratio [kJ/mol] | ||
|description=The calorimetric/respirometric or '''calorespirometric ratio''' (CR ratio) is the ratio of calorimetrically and respirometrically measured heat and oxygen flux, determinded by [[calorespirometry]]. The experimental CR ratio is compared with the theoretically derived [[oxycaloric equivalent]], and agreement in the range of -450 to -480 kJ/mol O<sub>2</sub> indicates a balanced [[aerobic]] energy budget ([[Gnaiger_1987_PhysiolZool|Gnaiger and Staudigl 1987]]). In the transition from aerobic to [[anaerobic | anaerobic metabolism]], there is a [[Limiting pO2|limiting ''p''<sub>O2</sub>]], ''p''<sub>lim</sub>, below which CR ratios become more exothermic since anaerobic energy flux is switched on. | |description=The calorimetric/respirometric or '''calorespirometric ratio''' (CR ratio) is the ratio of calorimetrically and respirometrically measured heat and oxygen flux, determinded by [[calorespirometry]]. The experimental CR ratio is compared with the theoretically derived [[oxycaloric equivalent]], and agreement in the range of -450 to -480 kJ/mol O<sub>2</sub> indicates a balanced [[aerobic]] energy budget ([[Gnaiger_1987_PhysiolZool|Gnaiger and Staudigl 1987]]). In the transition from aerobic to [[anaerobic | anaerobic metabolism]], there is a [[Limiting pO2|limiting ''p''<sub>O2</sub>]], ''p''<sub>lim</sub>, below which CR ratios become more exothermic since anaerobic energy flux is switched on. | ||
|info=[[Gnaiger_1983_J_Exp_Zool]], [[Gnaiger_1991_Soc_Exp_Biol_Seminar_Series]] | |info=[[Gnaiger_1983_J_Exp_Zool]], [[Gnaiger_1991_Soc_Exp_Biol_Seminar_Series]] | ||
}} | |||
{{MitoPedia concepts | |||
|mitopedia concept=Ergodynamics | |||
}} | }} | ||
{{MitoPedia methods | {{MitoPedia methods | ||
|mitopedia method=Respirometry | |mitopedia method=Respirometry | ||
}} | }} | ||
Latest revision as of 18:17, 28 December 2018
Description
The calorimetric/respirometric or calorespirometric ratio (CR ratio) is the ratio of calorimetrically and respirometrically measured heat and oxygen flux, determinded by calorespirometry. The experimental CR ratio is compared with the theoretically derived oxycaloric equivalent, and agreement in the range of -450 to -480 kJ/mol O2 indicates a balanced aerobic energy budget (Gnaiger and Staudigl 1987). In the transition from aerobic to anaerobic metabolism, there is a limiting pO2, plim, below which CR ratios become more exothermic since anaerobic energy flux is switched on.
Abbreviation: CR ratio [kJ/mol]
Reference: Gnaiger_1983_J_Exp_Zool, Gnaiger_1991_Soc_Exp_Biol_Seminar_Series
MitoPedia concepts:
Ergodynamics
MitoPedia methods:
Respirometry