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[单选题]
下列跨膜转运的方式中不出现饱和现象的是
A.与Na+耦联的继发性主动转运
B.原发性主动转运
C.易化扩散
D.单纯扩散
E.Na+-Ca2+交换
查看答案
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.与Na+耦联的继发性主动转运
B.原发性主动转运
C.易化扩散
D.单纯扩散
E.Na+-Ca2+交换
A.单纯扩散
B.易化扩散
C.主动转运
D.易化扩散和主动转运
E.单纯扩散和主动转运
A.单纯扩散和易化扩散
B.单纯扩散和主动转运
C.易化扩散和主动转运
D.易化扩散和受体介导式入胞
E.单纯扩散、易化扩散和主动转运