Question

Microtubules are:

a. symmetrical and hollow
b. thin and rigid
c. hollow and rigid
d. thin and flexible
e. strong and ropelike

Answer 1

is that letter C

Step-by-step explanation:

What Do Microtubules Do? Tubulin contains two polypeptide subunits, and dimers of these subunits string together to make long strands called protofilaments. Thirteen protofilaments then come together to form the (hollow and rigid)

Answer 2

Microtubules are small hollow tubes made of polymerized dimers of α-tubulin and ß-tubulin. They provide structural support, facilitate intracellular transport, and assist in cell division.

Step-by-step explanation:

Microtubules are small hollow tubes made of polymerized dimers of α-tubulin and ß-tubulin, two globular proteins. With a diameter of about 25 nm, microtubules are the widest components of the cytoskeleton.

They help the cell resist compression, provide a track along which vesicles move through the cell, and pull replicated chromosomes to opposite ends of a dividing cell. Microtubules can disassemble and reform quickly.