Skeletal muscles are composed of:
Correct answer: D. Actin, myosin and tropomyosin
- A. Myosin only
- B. Actin only
- C. Both actin and myosin
- D. Actin, myosin and tropomyosin
Explanation
Actin, Myosin and tropomyosin are the major structural and regulatory proteins present in the skeletal muscles. They are involved in Muscle contraction.
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About Support and Movement
Support and movement covers the axial and appendicular skeleton, bone structure, joints and the arrangement of skeletal muscles. Muscle contraction is explained through actin, myosin, sliding filaments, calcium ions and ATP, while arthritis is distinguished as a disorder of joints rather than a normal part of movement.
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