Globular monomers are present in:
Correct answer: A. Actin
- A. Actin
- B. Myosin
- C. Troponin
- D. Tropomyosin
Explanation
Actin is a protein that makes up the thin filaments in muscle fibers. Actin is composed of globular monomers known as G-actin (globular actin). These globular monomers have specific binding sites for myosin and can polymerize to form long chains called F-actin (filamentous actin), which is a major component of the thin filaments 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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