Physiology of Exercise - metabolic-cardiovascular-ventilaory coupling - Sources of adenosine triphosphate regeneration reflected in an VCO2 kinetics
3 important questions on Physiology of Exercise - metabolic-cardiovascular-ventilaory coupling - Sources of adenosine triphosphate regeneration reflected in an VCO2 kinetics
When is the contribution of PCr complete during exercise?
When VO2 reaches a steady state
In what way does anaerobic ATP regeneration cost O2?
The anaerobic mechanisms need to be replenished by the aerobic system in recovery
What role does CO2 play in maintaining a neutral environment (with respect to pH and charges) after splitting PCr?
The splitting of PCr makes the cell less acidic. Because of this the cell loses negative charges and cations become in excess. To compensate for this, CO2 is hydrated to H2CO3 and dissociates to H+ and HCO3 - . H+ is absorbed by the cell to maintain a prefered pH value and the HCO3 - counterbalances the positive charges of the excess [K+]
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