Sarah is a girl with dreams of becoming an Olympic marathon runner.She just learned that she has a rare genetic mutation and does not produce functional creatine phosphate.What portion of Sarah's marathon experience will be effected?

Question

Quizplus · Accepted Answer

Creatine phosphate is crucial for the rapid regeneration of ATP in muscles, primarily during the first few seconds of high-intensity exercise. It provides an immediate source of energy for muscle contractions at the start of an activity. In marathon running, which relies more on aerobic metabolism after the initial burst, the lack of functional creatine phosphate would mainly affect Sarah's performance at the very beginning of her run.

Sarah Is a Girl with Dreams of Becoming an Olympic