Question

If Cindy wanted to increase her endurance by taking supplements or drugs, she would be attempting to increase the __________.

Answer 1

Answer:

The correct answer is- A. uptake of oxygen by red blood cells

Explanation:

Red blood cell is important in transporting the oxygen from the lungs to the different body parts. During endurance activity, our breathing rate goes up so that the red blood cells carries more oxygen which is required by the muscle to generate energy during the aerobic respiration process.

Therefore if Cindy wanted to increase her stamina by taking drugs or supplements than Cindy would be attempting to increase the uptake of oxygen by red blood cells because more the uptake of oxygen more the oxygen can be present to create energy in muscles to work for long time. So the correct answer is A.