Question

multiple choice question

in exercise lasting more than 10 minutes, about how much of the bodys atp is produced aerobically?

100%
50%
90%
10%

Explanation:

Analyze energy systems during prolonged exercise

Using the Muscle Metabolism knowledge point
During prolonged exercise lasting more than 10 minutes, the body transitions away from short-term anaerobic pathways (the phosphagen system and anaerobic glycolysis) to meet its energy demands. Aerobic respiration becomes the dominant pathway for ATP production because it is highly efficient and sustainable for long-duration activities, supplying almost all of the required ATP.

Determine the percentage of aerobic ATP contribution

Using the Muscle Metabolism knowledge point
In sustained exercise exceeding 10 minutes, aerobic metabolism is highly dominant, contributing approximately 90% or more of the total ATP required by the working muscles, while anaerobic pathways contribute only a minimal fraction.

Answer:

• 100%
• 50%
• 90% (Correct answer)
• 10%