知识贝壳
知识贝壳
所属栏目：英汉双解生物学
The transport of moleculesor ions across a cell membrane against a concen-tration gradient,with the expenditure of energy:it is probably an attribute of all cells. Anythingthat interferes with the provision of energy willinterfere with active transport. T ......（本文共 446 字 ） [阅读本文] >>