When you are jogging,your muscles are using more oxygen and releasing more carbon dioxide into the blood than when you are at home on the couch.Which of the following would occur during your jog?
A)Blood pH would increase by at least 1 pH unit.
B)The concentration of bicarbonate ions (HCO₃⁻)in the blood would decrease.
C)The medullary respiratory center would increase the rate of breathing.
D)All of the above answers apply.

Question

Quizplus · Accepted Answer

During exercise, the medullary respiratory center would increase the rate of breathing to compensate for the increase in carbon dioxide produced by the muscles during exercise. Option A is incorrect as an increase in blood pH would be alkalinity and is the opposite of what would happen during exercise. Option B is incorrect as bicarbonate ions (HCO₃⁻) would actually increase in order to buffer the increase in acidity caused by the release of carbon dioxide.

When You Are Jogging,your Muscles Are Using More Oxygen and Releasing