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  1. Microtubule - Wikipedia

    The microtubule cytoskeleton is involved in the transport of material within cells, carried out by motor proteins that move on the surface of the microtubule. Microtubules play an important role in a …

  2. Microtubules: Definition, Location, Structure, Functions, & Diagram

    Feb 17, 2023 · Microtubules consist of a single type of cytoplasmic, globular protein subunits called tubulin. Each microtubule subunit comprises two closely related polypeptides: α-tubulin, and β …

  3. Microtubules - The Cell - NCBI Bookshelf

    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 …

  4. Microtubules: Structure & Function - GeeksforGeeks

    Jul 23, 2025 · Microtubules are small polymerized tubular structures made up of tubulin proteins. Microtubules, microfilaments, and intermediate filaments are the important parts of the cytoskeleton. …

  5. Microtubule | Cellular Structure, Cytoskeleton, Protein Filaments ...

    Microtubule, tubular structure of indefinite length, constructed from globular proteins called tubulins, which are found only in eukaryotic cells. Microtubules have several functions.

  6. Microtubule - Definition, Function, Structure & Quiz | Biology Dictionary

    Apr 28, 2017 · Microtubule Definition Microtubules are microscopic hollow tubes made of the proteins alpha and beta tubulin that are part of a cell’s cytoskeleton, a network of protein filaments that …

  7. Microtubules: Structure, Composition, Functions - Microbe Notes

    Nov 15, 2023 · Microtubules are found in the cytoplasm of all types of eukaryotic cells with rare absence, such as in human erythrocytes. They are tiny, hollow, bead-like tubular structures that help cells …

  8. Microtubules: the basics | Learn Science at Scitable - Nature

    Microtubules are major components of the cytoskeleton. They are found in all eukaryotic cells, and they are involved in mitosis, cell motility, intracellular transport, and maintenance of cell...

  9. Microtubules | Biology for Majors I - Lumen Learning

    As their name implies, microtubules are small hollow tubes. The walls of the microtubule are made of polymerized dimers of α -tubulin and β -tubulin, two globular proteins (Figure 1). With a diameter of …

  10. What are microtubules? - National University of Singapore

    Nov 30, 2023 · Microtubules are hollow cylinders [1] that are approximately 25nm in diameter [2] and vary in length from 200 nm to 25 μm. They are formed by the lateral association of between 12 and …