In the sliding filament model of muscle contraction,I bands contain
A)thick filaments.
B)thin filaments.
C)myosin II.
D)myomesin.
E)both thick and thin filaments.

Question

Quizplus · Accepted Answer

I bands contain thin filaments, which are primarily composed of the protein actin, along with troponin and tropomyosin. Thick filaments, made of myosin, are not found in the I bands but in the A bands.

In the Sliding Filament Model of Muscle Contraction,I Bands Contain