Which of the following major protein components of skeletal muscle is incorrectly matched with its function?
A)titin-links thick filaments at Z line
B)nebulin-links thin filaments at Z line
C)myomesin-myosin binding protein present at M line
D)troponin-binds along the length of the thin filaments and covers myosin binding sites
E)actin-major component of thin filaments

Question

Quizplus · Accepted Answer

Troponin binds at specific locations along the thin filaments and is responsible for regulating the interaction between actin and myosin, but it does not cover the myosin binding sites. This is the function of tropomyosin, which works in concert with troponin to regulate muscle contraction.

Which of the Following Major Protein Components of Skeletal Muscle