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Locomotion and Movement
Question
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The globular head of myosin contains

  • Calcium ions in large quantities

  • Troponin

  • ATPase enzyme

  • ATP

Answer

C.

ATPase enzyme

Globular head of myosin contains an ATPase enzyme that along with CO2+ and Mg2+ ions catalyses the breakdown of ATP during muscle contraction. It also has a binding site for ATP and active sites for actin.

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