MUSCLE
SKELETAL MUSCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Cross Bridges
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Myosin
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Light Band
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Actin
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Detailed explanation-1: -Myosin forms filaments in an antiparallel fashion at the center of the thick filament, while myosin forms filaments in a parallel way in the rest of the thick filament. Consequently, a bipolar thick filament is formed, leaving a central bare zone in the middle.
Detailed explanation-2: -Myofibrils Are Composed of Actin and Myosin Filaments Each myofibril (Figure 6-1D andE) is composed of about 1500 adjacentmyosin filaments and 3000actin filaments, which are large polymerized protein molecules that are responsible for the muscle contraction.
Detailed explanation-3: -Myosin is the prototype of a molecular motor-a protein that converts chemical energy in the form of ATP to mechanical energy, thus generating force and movement.