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

Question

Quizplus · Accepted Answer

Troponin does not bind along the length of the thin filaments; it is part of the thin filament complex that regulates muscle contraction by responding to calcium levels, thereby controlling the exposure of myosin-binding sites on actin.

Which of the Following Major Protein Components of Skeletal Muscle