Actin and myosin are the basic proteins involved in contractile machinery of our body to which type of proteins do they belong?
Correct answer: C. Fibrous Proteins
- A. Globular proteins
- B. Intermediate proteins
- C. Fibrous Proteins
- D. Integral proteins
Explanation
Actin and myosin are classified as fibrous proteins because of their elongated filamentous structure, which is crucial for their role in muscle contraction. Fibrous proteins are characterized by their structural functions, and both actin and myosin fit this classification due to their involvement in forming muscle fibers.Globular proteins are compact and generally involved in enzymatic and regulatory functions, which do not align with the structural role of actin and myosin. Intermediate proteins, or more accurately intermediate filaments, are part of the cytoskeleton and not directly involved in muscle contractions. Integral proteins are membrane proteins, which do not relate to the filamentous contractile functions of actin and myosin.
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