NEETZoologyLocomotion and Movement
What is the relationship between meromyosins and the thick filament in a myofibril?
Options
- AMeromyosins are the main component of the thick filament
- BMeromyosins run close to the thick filament
- CMeromyosins are distributed at regular intervals on the thick filament
- DMeromyosins have no relationship with the thick filament
Correct answer
A. Meromyosins are the main component of the thick filament
Step-by-step solution
.Each "F" actin is a polymer of monomeric "G" (Globular) actinsTwo filaments of another protein, tropomyosin also run close to the "F" actins throughout its length.In the resting state a subunit of troponin masks the active binding sites for myosin on the actin filaments.The thick filament in a myofibril is made up of many monomeric proteins called Meromyosins.The HMM component consists of the head and short arm of a meromyosin. The cross arm in the HMM component refers to the head and short arm projecting outwards