PHYSIOLOGY
DIFFERENT TYPE AND STRUCTURE OF MUSCLE FIBERS
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Question
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Thick filaments are made out of
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myosin
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actin
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heparin
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guanine
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Explanation:
Detailed explanation-1: -In striated muscle cells, myosin forms the backbone of the thick filaments, which are anchored within the M-band and extend bidirectionally toward the two opposite ends of the sarcomere (171, 247).
Detailed explanation-2: -Myosin filaments consist of myosin molecules, each having a tail of length 1500 Å and two elongated globular myosin heads, each with a dimension of 150 Å (Figure 3a). Myosin molecules comprise two heavy chains and four light chains.
Detailed explanation-3: -An individual sarcomere contains many parallel actin (thin) and myosin (thick) filaments.
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