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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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📚 A membrana plasmática, também chamada de membrana celular ou plasmalema, é uma estrutura que delimita a célula, separando o meio intracelular do meio externo. 📍 Ela demarca e mantém a integridade da célula e atua como uma barreira seletiva, permitindo que apenas algumas substâncias como oxigênio e nutrientes entrem e outras saiam, como os resíduos. #repost from @canalneurogenese Reposted by @repostfast
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