Which Statement About Intermediate Filaments Is True?
A) Rather Than $\alpha$

Multiple Choice

Which statement about intermediate filaments is true?

A) Rather than consisting of a single type of protein, they can be made up of a number of different proteins.
B) They are involved in cell movement.
C) The basic structure of an intermediate filament protein is a globular head and a long $\alpha$ -helical tail.
D) Like microfilaments, they exhibit treadmilling.