Multiple Choice
Oxygen debt in muscles may develop because of
A) the inability of respiratory and circulatory systems to supply enough oxygen to skeletal muscles when used strenuously for a minute or two.
B) the inability of myoglobin molecules to store enough oxygen when skeletal muscles are used strenuously for a minute or two.
C) too much oxygen used in forming pyruvic acid when skeletal muscles are contracted strenuously for a minute or two.
D) too high a concentration of oxygen in the atmosphere.
Correct Answer:
Verified
Correct Answer:
Verified
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