本题目来源于试卷: Form and Function B.3 Membranes & Membrane Transport，类别为 IB生物学
[单选题]
Which of these membrane prn9l -o) g/kbjut 8 jls7(p6rddu56vl spx18mpthuv e:gu y vjmq 60;;*7uzn;toteins carry out active transport?
A. Protein channels
B. Protein pumps
C. Peripheral proteins
D. Receptors
参考答案: B
本题详细解析:
Protein pumps are membrane proteins that pump molecules up their concentration gradient using energy in the form of ATP. Protein channels (Choice A) carry out passive transport while receptors (Choice D) and peripheral proteins (Choice C) do not transport proteins.
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