Q. The contractile protein of skeletal muscle involving ATPase activity is :
A) tropomyosin
B) myosin
C) α-actinin
D) troponin
Explanation
[Solution from source] The head of myosin has ATPase activity and binds actin to make cross-bridges, driving contraction. Troponin and tropomyosin are regulatory proteins on the thin filament with no ATPase activity. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.