Which of the following events would you predict as carbon dioxide is released from your muscles into the surrounding capillary b
ed? A. The amount of oxygen in venous blood will increase.
B. Arterial blood entering the capillaries will carry more oxygen.
C. Oxygen delivery to muscle is increased when more carbon dioxide is produced by the muscle.
D. Because of the change in blood pH, the blood can carry more oxygen.
Answer: C. Oxygen delivery to muscle is increased when more carbon dioxide is produced by the muscle.
Explanation:
When someone is doing an exercise, for example, his heart rate increases. This increases the rate at which oxygen is carried from the blood to the muscles and carbon dioxide is moved from the muscles to the lungs, where it will be breathed out.
