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A Kinetics Experiment Reveals That the Enzyme Fumarase Catalyzes the Dehydration

Question 293

Multiple Choice

A kinetics experiment reveals that the enzyme fumarase catalyzes the dehydration of malate with a kcat of 900 s−1.  If the substrate concentration is equal to the Km of the reaction, what is the reaction velocity when the enzyme concentration is 200 nM?


A) 3.6 × 102 µM/s
B) 9.0 × 101 µM/s
C) 4.5 × 10−3 µM/s
D) 2.2 × 10−4 µM/s

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