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Biology, 18.11.2020 01:40 mattstudy305

El sarcolema, o membrana plasmática de una célula muscular, ayuda a mantener un gradiente de concentración de iones de calcio entre el citoplasma de la célula muscular y el líquido extracelular. Cuando una célula muscular recibe una señal para contraerse, el calcio (Ca+2) se mueve a favor de este gradiente y pasa del espacio extracelular hacia el citoplasma de la célula. ¿Cuál de los siguientes es el mecanismo más probable por el cual el Ca+2 atraviesa el sarcolema durante la contracción de la célula muscular? a. El Ca+2 fluye a través de acuaporinas
b. El Ca+2 pasa por canales proteicos de la membrana
c. El Ca+2 se transporta por proteinas periferales

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El sarcolema, o membrana plasmática de una célula muscular, ayuda a mantener un gradiente de concent...
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