Microfilaments increase in length:
A)more quickly at one end than the other.
B)by assembling outward from the centrosome.
C)in cycles, following rapid depolymerization.
D)if free tubulin dimers are available.
E)All of these choices are correct.

Question

Quizplus · Accepted Answer

Microfilaments, which are primarily composed of the protein actin, increase in length more quickly at one end than the other due to the inherent polarity of actin filaments. This allows for directional growth, which is crucial for many cellular processes such as cell movement and division.

Microfilaments Increase in Length