The Protein of the Thick Filam Ent That Extends to the Z

Question

The protein of the thick filam ent that extends to the Z line is
A) Nebulin
B) Actin
C) Actinin
D) Titin
E) Tropomyosin

Accepted Answer

Titin is the protein that extends from the Z line to the M line in the center of the sarcomere, providing structural support and elasticity to the muscle fiber. It is a key component of the thick filament in muscle cells.