The thick filament is 1.6 :m long and the thin filament is 1.0 :m. At a sarcomere length of 2.2 :m, what fraction of the part of the thick filament containing m yosin heads is covered by a thin filament?
A) 100%
B) 90%
C) 80%
D) 70%
E) 60%

Question

Quizplus · Accepted Answer

At a sarcomere length of 2.2 µm, the entire length of the thick filament (1.6 µm) is covered by thin filaments because the thin filaments (1.0 µm each) extend from both ends of the sarcomere towards the center, overlapping the thick filament entirely.

The Thick Filament Is 1