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Locomotion and Movement — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYLocomotion and Movement1 Mark
MCQ
The globular head of myosin contains:
  • A
    Calcium ions in large quantities
  • B
    Troponin
  • C
    ATPase enzyme
  • D
    ATP
✓

Answer

  1. ATPase enzyme

Explanation:

Myosin is a contractile protein which is involved in the activity of the muscles. It is an ATP-dependent protein which has several sites for attachment on its head. It attaches to actin with one of its attachment site and with ATPase enzyme on the globular head. The ATP hydrolysis to ADP and pi by the ATPase enzyme provides energy for the contraction of muscles.

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