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muscle
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∙ 11y ago
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Actin- or myosin-containing structure?
myofilament
What chemicals are involved with contracting muscles?
Actin (thin myofilament), myosin (thick myofilament), calcium, and ATP (energy).
What 2 molecules are part of actin?
Actin and myosin are the molecules used for muscle contraction.
What prevents actin myofilaments from sliding backward when a myosin head releases?
During contraction, there are always some myosin heads attached to the actin myofilament when other myosin heads are detaching.
The thick filaments of muscle fibers are composed of what?
Myosin
What are the proteins are involved in muscle contraction?
Actin and myosin
What are the two types of myofilaments?
The two filaments involved are myosin and actin. Actin: is the framework and slides over the myosin filament when the muscle is shortened. myosin: is a thick filament Also a sacromere: is made up of the actin and myosin. It is the functional unit of a muscle fibre and extends from z line to z line. A muscle contraction: is many sacromeres shortening ( actin sliding over myosin)
What are the names of protein filaments in a muscle fiber?
Actin Filaments
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 is a myofilament with a knob like head?
Myosin
What is the myofilament with a knob like head?
Myosin
How do proteins actin and myosin interact to make a muscle contract?
Myosin and Actin
