Biology / Unit 2 Bio 0303 short lesson, about 20 seconds
Microtubules
Captions available
The idea
Microtubules are the cytoskeleton's widest, hollow fibers, built from tubulin dimers, that resist compression and track vesicle movement and chromosome separation.
In practice
Microtubules pull replicated chromosomes to opposite ends of a dividing cell and form the structural core of centrioles.
Where people slip
Microtubules resist compression the way microfilaments resist tension — different stresses, different fibers.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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