When myosin heads attach to actin filaments, ___________ is released.Multiple ChoiceADPATPtropomyosinphosphate

The actin-myosin bond is broken by the binding of __________ to the myosin head.Multiple ChoiceATPphosphateADPtropomyosin

The binding of Blank______ to the myosin head causes it to detach from G actin.Multiple choice question.calciumacetylcholineATP

ross-bridges form between binding sites on actin myofilaments and __________.Multiple Choicetroponintropomyosincalcium ionsmyosin heads

During muscle contraction, each Blank______ monomer has an open active site to bind with the protein myosin.Multiple choice question.troponintropomyosinG-actin

Uncovering binding sites for myosin on actin myofilaments involves troponin binding to ____________.Multiple ChoiceT tubulestropomyosinphosphatecalcium ions