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What the cross-bridge cycling requires?
What cross-bridge cycling requires is ATP, actin, inorganic phosphate, myosin, and ADP.
What is the role of atp in muscle concentration?
Atp plays a critical role in muscle. Breaking of the cross-bridge is possible only if atp binds to myosin, thereby allowing it to be free for the following contraction.
What energizes the power stroke in cross bridge cycle?
Hydrolysis of ATP
What causes cross bridge detachment?
ATP binds to the myosin head
Which event causes cross bridge detachment?
ATP binding to the myosin head
When do you see glycerinated muscle shorten?
Glycerinated muscle can shorten when ATP is present, allowing myosin cross-bridges to form and generate force. However, once ATP is depleted or unavailable, glycerinated muscle cannot shorten as it lacks the energy to power the cross-bridge cycling.
Where in the cross bridge cycle does ATP hydrolysis occur?
during the cocking of the myosin head
What causes cross bridge detachment in after a power stoke?
ATP binds to the myosin head.
What is molecular muscular contraction?
1. ATP hydrolysis 2. Cross-bridge formation 3. Release of ADP and phosphate (p) 4. ATP binding; Cross-bridge dissociation
What molecule must bind to to the cross bridge in order for it to disconnect with actin?
The molecule that binds to myosin, which causes it to disconnect, is an ATP molecule
At what stage in the cross-bridge cycle is ATP split into ADP and Pi?
Before the cross bridges of myosin can attach to actin.
What is the energy that powers the cross bridge on myosin to pull the actin?
the pholsphorilation of ATP to ADP and an inorganic P
