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 would not be useful in)qif jhn6r n9*h lx,5 ,2ov5 a8lrgaec determiningdzr,i eo;9 5syml.. hg the rate of an enzyme-c,5 lyhz.esrdi om;g .9atalyzed reaction?
A. Mass of the substrate used per unit of time.
B. Volume of product formed per unit of time.
C. Mass of product formed per unit of time.
D. Mass of enzyme used per unit of time.
参考答案: D
本题详细解析:
The mass of enzyme added remains the same throughout because the ew* d3og(6ssfmo.fy;6nmw v6 mnzyme acts as a catalyst and does not get used u *s6 mfm(ow6 gv f;3oyn6mdws.p during the reaction. All other choices (Choices A, B and C) are used in obtaining the rate of an enzyme-catalysed reaction since they involve measuring the substrate used or product formed over a specified amount of time.
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