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Yes...ATP causes myosin to detach from actin. Then, Hydrolysis of ATP, which results in ADP and P, causes conformational change in myosin head to swivel or pivot about its axis and then weakly bind to an actin filament. Once the myosin head binds, a conformational change in the myosin head will cause the P to leave (the ADP is still stuck on). The leaving of the P causes the power stroke or "the pulling of the actin filament/rowing stroke". ADP then leaves and the myosin is now back at its original state.
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What happens to ATP when it binds to Myosin?
Energisation of the head takes place, then cross bridge linkage follows
Atp allows what filaments to release and reset?
myosin?
Does ATP cause the detachment of myosin from actin?
Yes
Which step allows actin and myosin to release from each other?
an ATP molecule attaches to myosin apex answers
What are the thick protein filaments in the cell made of?
The thick filament is composed of the myosin molecule. The thin filament is composed of the actin molecule. Flexing the head of myosin provides the powerstroke.
Difference between actin and myosin?
Myosin is a molecular motor that converts ATP to energy. Actin is responsible for cell movement and uses energy from the ATP conversion done by myosin..
What is used to detach the myosin head?
ATP is used to detach myosin heads and move them back to position for another "power stroke."
Which molecule binds to the myosin head in order to break the actin-myosin bond?
ATP
What muscle filament uses ATP?
Myosin
What happens to ATP when it binds to Myosin?
Energisation of the head takes place, then cross bridge linkage follows
Does ATP cause the detachment of myosin from actin?
Yes
Atp allows what filaments to release and reset?
myosin?
What immediately follows the binding of ATP to the myosin head?
The myosin head pivots, moving the actin strand.
What converts the myosin head into the high-energy state?
ATP hydrolysis
Which step allows actin and myosin to release from each other?
an ATP molecule attaches to myosin apex answers
What molecule has a binding site for myosin heads?
Myosin heads bind to the actin binding site, and also has a part where ATP binds
What do muscle fibers need to reset the myosin heads?
ATP binds myosin, allowing it to release actin and be in the weak binding state (a lack of ATP makes this step impossible, resulting in the rigor state characteristic of rigor mortis). The myosin then hydrolyzes the ATP and uses the energy to move into the "cocked back" conformation.
