Question

Which type of cytoskeletal element is characterized as a hollow, rigid cylindrical tube with walls composed of tubulin subunits?

1) microfilaments
2) microtubules
3) intermediate filaments
4) macrofilaments

Answer 1

Microtubules are hollow, rigid cylindrical tubes composed of tubulin subunits.

Step-by-step explanation:

Microtubules are a type of cytoskeletal element characterized as a hollow, rigid cylindrical tube with walls composed of tubulin subunits.