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Membrana plasmática, também chamada de plasmalema, é formada por uma dupla camada de lipídios, na qual várias proteínas estão inseridas. Essa membrana, que circunda todas as células, garante a separação entre o meio interno e o meio externo. Vamos descobrir, a seguir, algumas das principais características dessa membrana e o papel que ela desempenha nas células #enem #biologia #ganhandodinheiro
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📍 As proteínas da membrana plasmática exercem variadas funções: 🔹️atuam preferencialmente nos mecanismos de transporte, organizando verdadeiros túneis que permitem a passagem de substâncias para dentro e fora da célula; funcionam como receptores de membrana, encarregadas de receber sinais de substâncias que levam mensagem para a célula; favorecem a adesão de células adjacentes em um tecido; servem como ponto de ancoragem para o citoesqueleto.
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