An Enzyme-Catalyzed Reaction Was Carried Out with the Substrate Concentration $\mu$

question 18

Multiple Choice

An enzyme-catalyzed reaction was carried out with the substrate concentration initially a thousand times greater than the K_m for that substrate. After 9 minutes, 1% of the substrate had been converted to product, and the amount of product formed in the reaction mixture was 12 $\mu$ mol. If, in a separate experiment, one-third as much enzyme and twice as much substrate had been combined, how long would it take for the same amount (12 $\mu$ mol) of product to be formed?

• A) 1.5 min
• B) 13.5 min
• C) 27 min
• D) 3 min
• E) 6 min

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