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Which event causes cross bridge detachment?

The binding of ATP to the myosin head causes cross bridge detachment by disrupting the binding between myosin and actin. ATP provides the energy necessary for myosin to release from actin and reset for the next contraction cycle.


Binding of the myosin heads sequentially prevents what?

myosin crossbridge binding


What converts the myosin head into the high-energy state?

The hydrolysis of ATP by myosin activates the myosin head and converts it into a high-energy state. This process releases energy that is used to power muscle contraction.


What is the compound that binds myosin and provides energy for the power stroke?

Adenosine triphosphate (ATP) is the compound that binds to myosin and provides the energy needed for the power stroke in muscle contraction. Myosin hydrolyzes ATP to ADP and inorganic phosphate during the power stroke, releasing energy that enables the myosin head to move along the actin filament.


Myosin contains two binding sites for what two molecules?

ATP (--> ADP+Pi) and actin


The ability of myosin to interact with actin is regulated by the binding of?

The ability of myosin to interact with actin is regulated by the binding of calcium ions to troponin, which then allows tropomyosin to move away from the binding site on actin. This exposes the myosin-binding sites on actin, allowing myosin to bind and initiate muscle contraction.


The binding of calcium to which molecule causes the myosin binding sites to be exposed?

Troponin binds to the Calcium ions to expose the actin to the myosin heads.


How does the myosin protein facilitate the process of dragging endorphins within the body?

Myosin protein helps move endorphins by binding to them and using energy to pull them along filaments in the body's cells.


What does binding of the myosin heads sequentially prevent?

Binding of the myosin heads sequentially prevents the actin-binding sites on the thin filaments from becoming continuously occupied by myosin heads, allowing for the muscle fiber to relax and the sarcomere to lengthen.


Which myofilament has a binding site for myosin head?

The myofilament that has a binding site for the myosin head is actin. Actin filaments contain specific regions known as binding sites that interact with the myosin heads during muscle contraction. This interaction is crucial for the sliding filament theory, where the myosin heads pull the actin filaments to shorten the muscle fiber. The binding of myosin to actin is regulated by the presence of calcium ions and the protein tropomyosin.


What specifically is cross bridge?

myosin binding to actin


What immediately follows the binding of ATP to the myosin head?

The myosin head pivots, moving the actin strand.