Multiple Choice Question

Question

Muscle cells in athletes often have more mitochondria than muscle cells in nonathletes. What can be inferred from this observation?

Answer 1

Based on the observation that muscle cells in athletes often have more mitochondria than those in nonathletes, the following inference can be made:

Higher aerobic capacity: The increased number of mitochondria in athletes' muscle cells suggests that their muscle cells are adapted for more efficient energy production through aerobic respiration. Mitochondria are the powerhouses of the cell, responsible for generating ATP (adenosine triphosphate) through the oxidation of nutrients, primarily in the presence of oxygen. Therefore, this adaptation likely supports the athlete's greater endurance and performance in aerobic activities.

In summary, the presence of more mitochondria in athletes' muscle cells indicates enhanced capacity for producing energy, particularly during prolonged physical activity.