Microtubules
A) are usually composed of myosin.
B) are hollow, filamentous structures.
C) anchor the cytoskeleton to integral proteins of the cell membrane.
D) interact with filaments composed of tubulin to produce muscle contractions.
E) are found in the ribosome.

Question

Quizplus · Accepted Answer

Microtubules are hollow, filamentous structures composed of tubulin protein subunits. They play a key role in maintaining cell structure, cell division, and intracellular transport. Myosin is a motor protein that interacts with actin filaments to produce muscle contractions, while ribosomes are cellular structures involved in protein synthesis. Anchoring of the cytoskeleton to integral proteins of the cell membrane is more commonly associated with intermediate filaments.