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Which myofilaments actually do the pulling during the sliding filament model of muscle contraction?
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∙ 10y ago
thick filaments
Wiki User
∙ 10y ago
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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
Which proteins found myofilaments contains the cross bridge?
The two muscle filaments are Myosin and Actin. Myosin is the thicker of the two. When a muscle contracts, a hook like particle extends off the myosin and grabs the actin pulling it in causing the contraction/ tension of the muscle
What are the two muscle movement?
Pulling and contracting is how a muscle moves the bones ....
What kind of connective tissue acts as a sponge from pulling away from bones during contraction?
Muscle
Why does pulling a muscle represent contraction?
Contraction is the process in which a muscle becomes or is made shorter and tighter, so if a muscle is pulled, it has become shorter and tighter. Hope this helped!
What does pulling your means?
Pulling your leg usually means someone is messing with you or lying to you OR he is actually pulling your leg
What does pulling your leg?
Pulling your leg usually means someone is messing with you or lying to you OR he is actually pulling your leg
What does pulling on index finger mean in sign language?
In American Sign Language, pulling on the index finger typically indicates calling attention to something or someone, or conveying a point or emphasis. It can also be used to show direction or to give a command.
When the myosin head flexes into a bend pulling the actin filament along with it this is called the A. actin reaction B. power stroke C. recovery stroke D. muscle tone E. action potential?
a
What requires ATP to function?
Proteins that carry out active transport such as Na/K ion channels requires ATP. Also metabolic enzymes such as kinases which can phosphorylate its substrate also need ATP; For example hexokinase convert the glucose to glucose 6 phosphate in the first glycolysis step with the expense of an ATP molecule.The muscle protein myosin can use ATP to flex its head, pulling on the muscle protein actin, causing the actin filament to slide past the myosin filament producing contraction of the muscle. Sometimes myosin does this with just ion transfers without requiring ATP, but the reaction using ATP is more dependable.
What happens to a tungsten- fillament lamp at the moment of switch on?
When a traditional light bulb is first powered on, it heats rapidly to the point that it glows white. An electromagnetic field is also produced which can create a magnetic force on the filament, pulling it in one direction. A filament that has been weakened with long use will often fail during that initial start-up shock.
What type of connective tissue prevents muscles from pulling away from the bones during contraction?
Dense connective tissue - it makes up the tendons.
