Which of the following has ATPase activity?

1. Actin                            2. Tropomyosin

3. Head of myosin             4. Troponin

Myosin head has a site for binding to ATP and cleaving of ATP provides energy for cross bridge formation and pulling of actin by myosin.                         

Difficulty Level:

  • 13%
  • 13%
  • 69%
  • 7%