2. Biological Molecules

Enzyme Kinetics — Quiz

Test your understanding of enzyme kinetics with 5 practice questions.

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Practice Questions

Question 1

Which of the following best describes the effect of a decrease in substrate concentration on the reaction velocity when the substrate concentration is much higher than the $K_m$?

Question 2

Which of the following best describes the effect of increasing the concentration of a competitive inhibitor on the Michaelis-Menten constant $K_m$?

Question 3

An enzyme-catalyzed reaction follows Michaelis-Menten kinetics. If the $K_m$ is 10 \, mM and the $V_{max}$ is 250 \, $\mu$ M/s, what is the reaction velocity at a substrate concentration of 5 \, mM?

Question 4

Which of the following best describes the effect of increasing the concentration of a non-competitive inhibitor on the $V_{max}$ of an enzyme-catalyzed reaction?

Question 5

Which of the following best describes the turnover number ($k_{cat}$) of an enzyme?
Enzyme Kinetics Quiz — AS-Level Biology | A-Warded