Question

if cindy wanted to increase her endurance by taking supplements or drugs, she would be attempting to increase the __________. a. uptake of oxygen by red blood cells b. release of sugars in the blood stream c. uptake of carbohydrates by the body d. release of insulin in the body please select the best answer from the choices provided.

Explanation:

Endurance is related to the body's ability to perform physical activity for an extended time. Oxygen - carrying capacity is crucial for endurance. Red blood cells transport oxygen to the body's tissues. Increasing the uptake of oxygen by red blood cells can enhance endurance as more oxygen is available for cellular respiration to produce energy. The other options (sugar release, carbohydrate uptake, insulin release) are not as directly related to increasing endurance as oxygen uptake by red - blood cells.

Answer:

A. uptake of oxygen by red blood cells