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MDCAT Biology QUESTION #4303
Question 1
An active athlete has more stamina compared to a physically inactive person. Which organelle has greatly increased in the muscle cells of athletes?
  • Nucleus
  • Mitochondria✔️
  • Golgi bodies
  • Smooth endoplasmic reticulum (SER)
Correct Answer Explanation
Mitochondria are the powerhouses of the cell. In athletes, muscle cells have more mitochondria to produce more ATP through aerobic respiration for sustained physical activity.