When You Are Jogging, Your Muscles Are Using More Oxygen

Multiple Choice

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 become more basic.
B) The concentration of bicarbonate ions (HCO3−) in the blood would decrease.
C) The medullary respiratory center would detect rising carbon dioxide levels.
D) The volume of the dead air space would decrease.