PHYSIOLOGY
SKELETAL MUSCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which muscle protein is thick and which is thin?
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Sarcomere is thick and Actin is thin
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Myosin is thick and Titin is thin
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Myosin is thick and Actin is thin
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Titin is thick and Sarcomere is thin
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Explanation:
Detailed explanation-1: -The myofilaments include thick filaments, composed mainly of myosin, and thin filaments composed mainly of actin. The thick and thin filaments cause the cross-striations because of their regular overlap that is kept in register all across the diameter of the muscle fiber.
Detailed explanation-2: -An individual sarcomere contains many parallel actin (thin) and myosin (thick) filaments.
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