Refer to the Graph Showing the Capacity of Three Systems

question 222

Multiple Choice

Refer to the graph showing the capacity of three systems that provide ATP for muscle contraction. A marathon runner relies mostly on

• A) the system of curve A.
• B) the system of curve B.
• C) the system of curve C.
• D) anaerobic production of ATP to meet the needs of muscles.
• E) the system of curve A generating precursors for system B.

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