1. Que signifie la polarité des microtubules au niveau de leurs extrémités ?
2. Quelle est la composition principale du cytosquelette dans les cellules eucaryotes ?
3. De quoi sont composés les microtubules dans le cytosquelette des cellules eucaryotes ?
Rôle général du cytosquelette
Maintien de la forme, mouvement, transport intracellulaire, division
Microtubules — diamètre?
25 nm, tubes cylindriques.
Composition du cytosquelette
Microtubules, microfilaments, filaments intermédiaires
Composants des microtubules?
Protofilaments de tubuline α et β.
Cytosquelette — éléments?
Microtubules, microfilaments, filaments intermédiaires.
Microtubules — rôle?
Structure, transport, mobilité, division.
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