MICROANATOMY

Detailed explanation-1: -Microtubules, the third principal component of the cytoskeleton, are rigid hollow rods approximately 25 nm in diameter. Like actin filaments, microtubules are dynamic structures that undergo continual assembly and disassembly within the cell.

Detailed explanation-2: -Microtubules. As their name implies, microtubules are small hollow tubes. The walls of the microtubule are made of polymerized dimers of -tubulin and -tubulin, two globular proteins (Figure 4.5.

Detailed explanation-3: -Microtubules are thick filaments made of the protein tubulin. Microtubules are the largest of the fibers in the cytoskeleton. Tubulin comes in two main forms, alpha-tubulin and beta-tubulin. These two proteins alternate to form long chains, with 13 of them forming hollow tubes about 25 nm in diameter.

Detailed explanation-4: -Microtubules. As their name implies, microtubules are small hollow tubes. The walls of the microtubule are made of polymerized dimers of -tubulin and -tubulin, two globular proteins ([link]). With a diameter of about 25 nm, microtubules are the widest components of the cytoskeleton.