The RER can rise above 1.00 A)during high-intensity exercise. B)if VCO₂ VO₂. C)when the buffering of lactic acid stimulates ventilation to eliminate CO₂. D)when all of these occur.

Question

The RER can rise above 1.00 A)during high-intensity exercise. B)if VCO₂ > VO₂. C)when the buffering of lactic acid stimulates ventilation to eliminate CO₂. D)when all of these occur.

Quizplus · Accepted Answer

The Respiratory Exchange Ratio (RER) can indeed rise above 1.00 during high-intensity exercise, when the body shifts to anaerobic metabolism, producing lactic acid. This lactic acid is buffered, leading to an increase in CO2 production (VCO₂ > VO₂), which in turn stimulates ventilation to eliminate the excess CO2. Thus, all the given scenarios contribute to an RER above 1.

The RER Can Rise Above 1.00