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AP Biology Cytoskeleton Components Flashcards

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11427755544The structure of microtubulesHollow tubes; wall consists of 13 columns of tubulin molecules0
11427763966The diameter of microtubules25 nm with 15 nm lumen1
11427770744Protein subunits of microtubulestubulin, a dimer consisting of alpha tubulin and beta tubulin2
11427793371First main function of microtubulesmaintenance of cell shape3
114278110662nd main function of microtubulesCell motility4
114278133053rd main function of microtubulesChromosome movements in cell division5
114278205704th main function of microtubulesOrganelle movements6
11427826964Structure of microfilamentstwo intertwined strands of actin, each a polymer of actin subunits7
11427833702Diameter of microfilaments7 nm8
11427838926Protein subunits of microfilamentsActin9
114278436351st main function of microfilamentsMaintenance of cell shape10
114278514502nd main function of microfilamentsChanges in cell shape11
114278571073rd main function of microfilamentsMuscle contraction12
114278615694th main function of microfilamentsCytoplasmic streaming13
114278669605th main function of microfilamentsCell motility (pseudopodia)14
114278730996th main function of microfilamentsCell division (cleavage furrow formation)15
11427948715The structure of intermediate filamentsfibrous proteins supercoiled into thicker cables16
11427952106Diameter of intermediate filaments8-12 nm17
11427962387Protein subunits of intermediate filamentsone of several different proteins (such as keratins), depending on cell type18
114279876221st main function of intermediate filamentsMaintenance of cell shape (tension-bearing elements)19
114280068892nd main function of intermediate filamentsAnchorage of nucleus and certain other organelles20
114280106373rd main function of intermediate filamentsFormation of nuclear lamina21
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