An increase in the intensity of exercise produces an increase in the volume of carbon dioxide produced.
However, Figure 3 shows that the pCO2 in air breathed out did not show a large increase during the exercise.
Suggest one physiological change that would cause this result. Explain how the physiological change would allow for the removal of the increase in the volume of
Calculate the ratio of pO2 to pCO2 in breathed-out air at this time. Show your working.
You dont need Figure 3 as it explains what it shows anyway.
I can't think of a way that this is possible unless it's because anaerobic respiration is occuring but in this case CO2 is still produced as a byproduct.