問題詳情
7. A cell containing sodium ions at a concentration of 0.05 mM lives in a pond containing 0.005 mM of sodium ions. Evidently, sodium ions are entering the cell by
(A) simple diffusion
(B) osmosis
(C) active transport
(D) facilitated diffusion
(E) endocytosis
參考答案
答案：99
統計：A:0,B:0,C:0,D:0,E:0
難度：計算中