Within a sarcomere, the contracting proteins are:
A)myosin and actin
B)troponin and myosin
C)actin and troponin
D)myoglobin and myosin

Question

Quizplus · Accepted Answer

The two types of contractile proteins found within a sarcomere are myosin and actin. Myosin is a thick filament and actin is a thin filament. Troponin is a regulatory protein that is involved in the process of muscle contraction, but it is not a contracting protein. Myoglobin is a protein found in muscle tissue that is involved in oxygen storage and transport, but it is not involved in muscle contraction.

Within a Sarcomere, the Contracting Proteins Are