Question

What is the correct sequence of events in the cross bridge formation?

i.The power stroke

ii. Cross bridge formation

iii.Myosin head is activated by ATP

iv.Calcium released binds to the troponin unblocks the actin sites

v.Cross bridge detachment

vi.Reactivation of the myosin head

• A. iv, iii, ii, i, v, vi.
• B. i, v, ii, iii, iv, vi.
• C. iii, iv, i, v, ii, vi.
• D. ii, i, iv, iii, v, vi.

Answer 1

The correct option is A

iv, iii, ii, i, v, vi.

i.Calcium released binds to the troponin unblocks the actin sites

ii.Myosin head is activated by ATP

iii.Cross bridge formation

iv. The Power Stroke

v. Cross Bridge detachment

vi. Reactivation of the myosin head