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A sprinter's first few seconds of effort are powered by ATP from:

ACellulose phosphate
BCeramic phosphate
CCreatine phosphate
DCarbonic phosphate
Answer & Solution
Correct answer: C. Creatine phosphate
1. Stored ATP runs out almost instantly. 2. A rapid backup store donates phosphate. 3. That store is creatine phosphate. _Source: OpenStax Anatomy and Physiology 2e, Chapter 10, Muscle Tissue._
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