本题目来源于试卷: Continuity and Change D.4 Cell & Nuclear Division，类别为 IB生物学
[单选题]
Which one of the following transport proteinloq 8l(f 4w5ooe 6t6uhs only ceg9jp c9f uc,5ce39y/yb/ dsvt.e h4garries out active transport?h/vc 9spe c.y4b,f jud9g/ 5yg9etec3
A. Protein channels
B. Protein pumps
C. Protein carriers
D. Aquaporins
参考答案: B
本题详细解析:
Protein pumps are membrane proteins that carry out active transport. They require the energy to pump molecules up their concentration gradient. Protein channels (Choice A), protein carriers (Choice C), and aquaporins (Choice D) all conduct passive transport.
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