Drag and drop the terms to correctly complete the sentences

Drag and drop the terms to correctly complete the sentences involving cross bridge detachment Answers may be used once or not at all. The bond between the actin and myosin head weakens as a result of Only of the myosin heads are detached from actin at any one time while calcium is present and cycling continues. is not bound to myosin during the detachment step.

Solution

The bond between an actin and myosin head weakens due to break in ATP which gets bind to the myosin head. Myosin head shows ADP and phosphate. ATP gets broken down into ADP and phosphate. Thus myosin head shows presence of ADP and phosphate during detachment step. While calcium is present, only one-half of the myosin heads are detached from the actin when calcium is present and cycling continues.