The protein that prevents the exposure of myosin binding site of action is _____________.
A
actin
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
tropomyosin
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
troponin
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
myosin
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is A actin Option (B) is correct. Tropomyosin hinders the cross-bridge formation and contraction of muscle without nervous input thereby blocking myosin binding sites on actin molecules. Troponin binds to tropomyosin and helps to position it on the actin molecule.