在海带细胞内的碘离子浓度远高于海水中碘离子浓度但海带细胞仍可以从海水中吸收碘离子其吸收方式是a.自由扩散b.协助扩散c.主动运输d.渗透 Template




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tomski在海带细胞内的碘离子浓度远高于海水中碘离子浓度但海带细胞仍可以从海水中吸收碘离子其吸收方式是a.自由扩散b.协助扩散c.主动运输d.渗透 coloring