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What is the molecular composition of troponin?

Troponin is a major component of muscle tissue. It is composed of troponin C, troponin I, and troponin T. Troponin interacts with tropomyosin and myosin to create muscle contraction.


During muscle contraction....... attach to ...............?

Troponin


During muscle contraction calcium attaches to what?

Troponin


What other protein is involved in skeletal muscle contraction?

Troponin is another protein involved in skeletal muscle contraction. It works in conjunction with tropomyosin to regulate the interaction between actin and myosin filaments during muscle contraction.


What is the function of troponin in muscle contractions?

It is involved in the regulation of the contraction of a cross-striated muscle.


Are troponin and tropomyosin contractile or regulatory proteins?

Troponin is a regulatory protein while tropomyosin is a contractile protein. Troponin is involved in regulating muscle contraction by controlling the interaction between actin and myosin. Tropomyosin works in conjunction with troponin to regulate the binding of myosin to actin during muscle contraction.


What Steps in muscle contraction require calcium ions?

Calcium ions bind to troponin, changing troponin's shape


In muscle contraction calcium apparently acts to?

Muscle contraction is regulated by calcium ions, which will change thin filament into an activated state by binding to troponin. The binding of calcium to the troponin changes it's shape so the myosin binding sites on the actin (thin filament) are exposedbind to regulatory sites on troponin to remove contraction inhibition


Role of ionic calcium in muscle contraction?

Ionic calcium plays a crucial role in muscle contraction by binding to the protein troponin, which then allows for the movement of tropomyosin, enabling myosin heads to bind to actin filaments and form cross-bridges. This process ultimately leads to muscle fiber contraction.


What three molecules make up the thin filament?

The thin filament of a muscle cell is primarily composed of actin, tropomyosin, and troponin. Actin is the main structural protein, tropomyosin helps regulate muscle contraction, and troponin controls the interaction between actin and myosin during muscle contraction.


Which protein do calcium ions need to bind to in order to initiate muscle contraction?

Calcium ions need to bind to the protein troponin in order to initiate muscle contraction.


What myofilaments contains troponin and tropomyosin?

The thin filament in skeletal muscle contains troponin and tropomyosin. Troponin regulates the interaction between actin and myosin during muscle contraction, while tropomyosin helps to block the myosin-binding sites on actin when the muscle is at rest.