Biology / Bio 0303 · Atom · ~20 seconds
Microtubules
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Microtubules are the cytoskeleton's widest, hollow fibers, built from tubulin dimers, that resist compression and track vesicle movement and chromosome separation.
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Microtubules pull replicated chromosomes to opposite ends of a dividing cell and form the structural core of centrioles.
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Microtubules resist compression the way microfilaments resist tension — different stresses, different fibers.