What causes actin to be exposed?
(B) The myosin head is attracted to actin, and myosin binds actin at its actin-binding site, forming the cross-bridge. (C) During the power stroke, the phosphate generated in the previous contraction cycle is released.
(B) The myosin head is attracted to actin, and myosin binds actin at its actin-binding site, forming the cross-bridge. (C) During the power stroke, the phosphate generated in the previous contraction cycle is released.
