Practice Enzyme Kinetics (Michaelis–Menten Basics) - 6.1 | Unit 6: Chemical Kinetics | IB 11 Chemistry
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Enzyme Kinetics (Michaelis–Menten Basics)

6.1 - Enzyme Kinetics (Michaelis–Menten Basics)

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Practice Questions

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Question 1 Easy

What is Vmax in enzyme kinetics?

💡 Hint: Think about what happens when all enzyme active sites are occupied.

Question 2 Easy

Define Km.

💡 Hint: Consider it a measure of the enzyme's affinity for its substrate.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does Vmax represent in enzyme kinetics?

The rate of reaction at half maximum velocity
The maximum rate of reaction
The minimum rate of reaction

💡 Hint: Think about the capacity of an enzyme at saturation.

Question 2

True or False: Km represents the substrate concentration at which the reaction rate is half of Vmax.

True
False

💡 Hint: Consider what happens when you adjust the substrate concentration.

2 more questions available

Challenge Problems

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Challenge 1 Hard

Given a set of data points for reaction rates and substrate concentrations, derive Km and Vmax using the Lineweaver-Burk plot.

💡 Hint: Remember that slope = Km/Vmax and intercept = 1/Vmax.

Challenge 2 Hard

Explain how a competitive inhibitor alters the kinetic parameters of an enzyme-catalyzed reaction.

💡 Hint: Think about how inhibitors interact at the active site.

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