Multiple Choice
Which of the following proteins makes up the thick filament of the sarcomeres?
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9. Muscle Tissue
Sliding Filament Theory and the Sarcomere
Back9. Muscle Tissue
Sliding Filament Theory and the Sarcomere
- Multiple ChoiceIn the context of the sliding filament theory, what protein primarily composes the thin myofilaments within a skeletal muscle sarcomere?
- Multiple ChoiceThin filaments are composed of how many strands of fibrous actin?1views
- Multiple ChoiceWhich two proteins slide past each other in the sliding filament theory of muscle contraction?1views
- Multiple ChoiceWhat is the area in the center of the A band where there are no actin myofilaments?1views
- Multiple ChoiceWhat is the consequence if the myosin heads cannot bind to the actin during muscle contraction?1views
- Multiple ChoiceWhich of the following regions of a sarcomere contain thin filaments?1views
- Multiple ChoiceWhich of the following is most directly required to initiate the coupling of myosin to actin in the sliding filament theory?1views
- Multiple ChoiceWhat is the role of calcium in the cross-bridge cycle during muscle contraction?1views
- Multiple ChoiceWhich of the following best describes the term 'Z line' in the context of the sliding filament theory and the sarcomere?1views
- Multiple ChoiceIn the sliding filament theory, what causes the myosin head to disconnect from actin?1views
- Multiple ChoiceWhat happens when a myosin head releases from actin during muscle contraction?1views
- Multiple ChoiceWhat happens when troponin and tropomyosin block the active sites of actin in the sarcomere?1views
- Multiple ChoiceIn the context of sliding filament theory, what is the basic functional (contractile) unit of skeletal muscle?1views
- Multiple ChoiceWhat does the sliding filament model describe during muscle contraction?1views