本题目来源于试卷: Interaction & Interdependence C.1 Enzymes & Metabolism，类别为 IB生物学
[单选题]
Which of the following statev a)vb*3bs bep4. yh 3bgjp-z2smx w+;menmj/vt c kv-eqrok7w;cq.kw ltz0+ , -5ts describes how enzymes interact with substrates to catalyze react-ktvo0w7q mvkqr c; j ,-ez5.kwt +/lcions?
I. Enzymes and substrates in solutions collide with one another, and the substrate is bound at the active site.
II. There is more movement of the substrate in a reaction because the substrate is usually smaller than the enzyme in size.
III.When the substrate binds to the active site, the shape of the enzyme changes slightly so it can accommodate the substrate.
A. I, II and III
B. I and II only
C. I and III only
D. II only
参考答案: C
本题详细解析:
Statements I and III are correct and descr8f./g9 mrlbexwn0l 5 eibe how enzymes interact with their specific substrates. Statement II is incorrect because, in many catabolic reactions, exlb r0n 8 /g.5f9mlewthe substrate is larger than the enzyme.
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