PHYSIOLOGY
MUSCLE CONTRACTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True or False:Actin and myosin don’t have to attach to each other in order for the muscle to contract.
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True
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False
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -The movements of myosin appear to be a kind of molecular dance. The myosin reaches forward, binds to actin, contracts, releases actin, and then reaches forward again to bind actin in a new cycle. This process is known as myosin-actin cycling.
Detailed explanation-2: -ATP and Muscle Contraction Myosin binds to actin at a binding site on the globular actin protein. Myosin has another binding site for ATP at which enzymatic activity hydrolyzes ATP to ADP, releasing an inorganic phosphate molecule and energy.
Detailed explanation-3: -All three muscle types contain actin and myosin filaments, which work together to produce muscle contractions.
There is 1 question to complete.