endosome (内体)
正确答案
次级内体中的pH呈酸性,且具有分拣作用,能够分选与配体结合的受体,让它们再循环到细胞质膜表面或高尔基体反面网络,次级内体中的受体和配体不再偶联在一起,所以次级内体又被称为CURL(compartment of uncoupling of receptor and ligand),意思是受体与配体非偶联的区室。
答案解析
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