Microtubules and microfilaments are similar with respect to each of the following except
A)inherent polarity of the structure.
B)localization similar to that of intermediate filaments in cells.
C)association with motor proteins.
D)plus and minus ends for polymerization.
E)both are polymers of subunits.

Question

Quizplus · Accepted Answer

Microtubules and microfilaments both have inherent polarity, associate with motor proteins, have plus and minus ends for polymerization, and are polymers of subunits. However, their localization within cells is different from that of intermediate filaments, making choice B the correct answer. Intermediate filaments provide structural stability and are found throughout the cell and nucleus, whereas microtubules and microfilaments have specific roles in cell movement, division, and intracellular transport, leading to different localizations.

Microtubules and Microfilaments Are Similar with Respect to Each of the Following