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What best describes the events of excitation in excitation-contraction coupling?
cross bridge formation "Excitation-contraction coupling" connects muscle fiber excitation to the muscle fiber contraction (cross bridge formation). During contraction, myosin heads form cross bridges many times-with each cross bridge generating a small amount of tension in the muscle fiber.
What is the actin status to begin cross bridge formation?
The actin binding sites are exposed
How would the loss of acetylcholinesterase from the motor end affect skeletal muscle?
Acetylcholine release is necessary for skeletal muscle contraction, because it serves as the first step in the process, enabling the subsequent cross-bridge formation. A muscle's ability to contract depends on the formation of cross-bridges between myosin & actin filaments. A drug that blocks acetylcholine release would interfere with this cross-bridge formation and prevent muscle contraction
What is a cross-bridge?
a bridge that is shaped like a cross
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
When was Which Bridge to Cross - Which Bridge to Burn - created?
Which Bridge to Cross - Which Bridge to Burn - was created on 1995-01-30.
What was the name of the land formation that allowed people to cross into america?
The land formation that allowed people to cross into America is known as the Bering Land Bridge. This land bridge connected Asia and North America during the last Ice Age when sea levels were lower, enabling migration of humans and animals. It played a crucial role in the peopling of the Americas.
When was Cross Over the Bridge created?
Cross Over the Bridge was created in 1945.
What bridge do you cross to get out of Indiana?
Ohio bridge
ADP molecules on the surface of actin serve as active sites for the formation of cross bridges with molecules of?
ATP not ADP binds to actin-myosin and is cleaved by to ADP.
How does troponin facilitate cross bridge formation?
Troponin controls the position of tropomyosin on the thin filament, enabling myosin heads to bind to the active sites on actin.
Cross-bridge formation that results in muscle contraction requires intracellular?
the major intracellular ion in crossbridge formation is what
