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AFMCAFMC 2012Locomotion and Movement
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Solution:
Myoglobin is an iron containing globular protein resembling haemoglobin found in muscle cells. It comprises a single polypeptide chain and a haem group, (like haemoglobin) which binds reversibly with oxygen, hence it acts as an oxygen reservoir within the muscles fibres and provides oxygen when muscle oxygen demand outpaces supply from the blood, e.g., during strenuous exercise.