#Question id: 617
#Unit 1. Molecules and their Interaction Relevant to Biology
Compare the two reaction coordinate diagrams below and select the answer that correctly describes their relationship. In each case, the single intermediate is the ES complex.
#Question id: 618
#Unit 1. Molecules and their Interaction Relevant to Biology
In the following diagram of the first step in the reaction catalyzed by the protease chymotrypsin, the process of general base catalysis is illustrated by the number ________, and the process of covalent catalysis is illustrated by the number _________.
#Question id: 619
#Unit 1. Molecules and their Interaction Relevant to Biology
The benefit of measuring the initial rate of a reaction V0 is that at the beginning of a reaction:
#Question id: 620
#Unit 1. Molecules and their Interaction Relevant to Biology
Which of the following statements about a plot of V0 vs. [S] for an enzyme that follows Michaelis-Menten kinetics is false?
#Question id: 621
#Unit 1. Molecules and their Interaction Relevant to Biology
Michaelis and Menten assumed that the overall reaction for an enzyme-catalyzed reaction could be written as Using this reaction, the rate of breakdown of the enzyme-substrate complex can be described by the expression:
#Question id: 622
#Unit 1. Molecules and their Interaction Relevant to Biology
An enzyme-catalyzed reaction was carried out with the substrate concentration initially a thousand times greater than the Km 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 micromol. 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 micromol) of product to be formed?