During contraction of the sarcomere, the Z disk helps hold the Blank______ in place.Multiple choice question.troponin moleculesactin myofilamentstropomyosin moleculesmyosin myofilaments

During contraction of the sarcomere, the M line helps hold the Blank______ in place.Multiple choice question.actin filamentsmyosin filamentstropomyosin moleculestroponin molecules

During skeletal muscle contraction, calcium binds to Blank______.Multiple choice question.ATPtropomyosintroponinactin

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

Describe what must occur before tropomyosin can move away from the myosin binding sites.Multiple choice question.The sarcomere has to shortenActin and elastic fibers have to recoilCalcium must bind to troponinATP has to bind to tropomyosin

A chain of small units of globular actin make up Blank______.Multiple choice question.tropomyosinF actintroponinmyosin