In a resting muscle fiber,_________ is covered by a protein called _________.
A)actin; troponin
B)actin; calcium
C)myosin; troponin
D)myosin; calcium

Question

In a resting muscle fiber,_________ is covered by a protein called _________.​ 
A)actin; troponin 
B)actin; calcium 
C)myosin; troponin 
D)myosin; calcium

Quizplus · Accepted Answer

In a resting muscle fiber, the thin filament made up of actin is covered by the protein troponin. Myosin is found on the thick filament and calcium ions are involved in muscle contraction, but neither of these are covering actin in a resting muscle cell.

In a Resting Muscle Fiber,_________ Is Covered by a Protein