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When Muscle Is Suddenly Activated to Perform Contractions at a Rapid

Question 61

Multiple Choice

When muscle is suddenly activated to perform contractions at a rapid rate, most of the ATP to fuel the first 3‒5 seconds of exercise comes from

A) the aerobic breakdown of glycogen.
B) creatine phosphate hydrolysis.
C) anaerobic glycolysis.
D) ATP stored in the cell.

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