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Biology, 26.08.2020 23:01 whitakers87

A figura abaixo esquematiza aspectos da dinâmica de elementos do citoesqueleto, destacando a resposta a um estímulo ambiental. Com base na análise da figura e nos conhecimentos sobre funções dos elementos do citoesqueleto, observe as afirmativas abaixo. I - A conversão de pequenas subunidades solúveis em grandes polímeros filamentosos é irreversível. II - A figura exemplifica a formação de filamentos intermediários, caracterizados pela grande instabilidade estrutural. III - A formação de elementos do citoesqueleto ocorre por automontagem, dispensando uma fonte exógena de energia. IV - O ciclo de polimerização e despolimerização de elementos do citoesqueleto tem grande significado biológico para organismos procarióticos. V - Sinais ambientais que podem desencadear o rearranjo de filamentos de actina incluem fontes de nutrientes e estímulos mecânicos. É correto afirmar:

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A figura abaixo esquematiza aspectos da dinâmica de elementos do citoesqueleto, destacando a respost...
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