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1. Introduction to Biochemistry(0)
2. Water(0)
3. Amino Acids(0)
4. Protein Structure(0)
5. Protein Techniques(0)
6. Enzymes and Enzyme Kinetics(0)
7. Enzyme Inhibition and Regulation (0)
8. Protein Function (0)
9. Carbohydrates(0)
10. Lipids(0)
11. Biological Membranes and Transport (0)
12. Biosignaling(0)
Review 1: Nucleic Acids, Lipids, & Membranes(0)
Review 2: Biosignaling, Glycolysis, Gluconeogenesis, & PP-Pathway(0)
Review 3: Pyruvate & Fatty Acid Oxidation, Citric Acid Cycle, & Glycogen Metabolism(0)
Review 4: Amino Acid Oxidation, Oxidative Phosphorylation, & Photophosphorylation(0)

6. Enzymes and Enzyme Kinetics

Rate Constants and Rate Law

6. Enzymes and Enzyme Kinetics

Rate Constants and Rate Law: Videos & Practice Problems

Video Lessons Practice Worksheet

Rate Constants and Rate Law Practice Problems

20 problems

1PRACTICE PROBLEM

What does a rate constant indicate in a chemical reaction?

2PRACTICE PROBLEM

Which rate constant is responsible for the formation of the enzyme-substrate complex?

3PRACTICE PROBLEM

Given the rate constants k2 = 0.5 s^-1 and k-2 = 0.1 s^-1, calculate the initial reaction velocity if the enzyme-substrate complex concentration is 0.2 M.

4PRACTICE PROBLEM

Why is k-2 negligible during the initial stages of an enzyme-catalyzed reaction?

5PRACTICE PROBLEM

In an enzyme-catalyzed reaction, why is k2 considered the rate-limiting step?

6PRACTICE PROBLEM

How can the rate law be used to calculate reaction velocity when final concentrations are unknown?

7PRACTICE PROBLEM

Construct the rate law for the reaction: 2A + B -> C, given that the reaction order for A is 2 and for B is 1.

8PRACTICE PROBLEM

Why do biochemists focus on the initial reaction velocity when studying enzyme-catalyzed reactions?

9PRACTICE PROBLEM

What does the slope of the tangent line to the curve of product concentration vs. time represent?

10PRACTICE PROBLEM

Which rate constants directly affect the product concentration in enzyme-catalyzed reactions?

11PRACTICE PROBLEM

What happens to a reaction when the rate constant is equal to zero?

12PRACTICE PROBLEM

In a reaction where k1 = 0.3 s^-1, k-1 = 0.1 s^-1, k2 = 0.05 s^-1, and k-2 = 0.02 s^-1, which step is the rate-limiting step?

13PRACTICE PROBLEM

Given the rate law v = k[A]^2[B], calculate the reaction velocity if k = 0.4 s^-1, [A] = 0.5 M, and [B] = 0.3 M.

14PRACTICE PROBLEM

How does ignoring k-2 during the initial stages of a reaction simplify the calculation of reaction velocity?

15PRACTICE PROBLEM

Why is the rate-limiting step crucial in determining the overall reaction rate?

16PRACTICE PROBLEM

If the rate constant k = 0.2 s^-1 and the initial concentration of reactant A is 0.4 M, what is the reaction velocity according to the rate law v = k[A]?

17PRACTICE PROBLEM

For the reaction A + 2B -> C, with reaction orders of 1 for A and 2 for B, what is the rate law?

18PRACTICE PROBLEM

What is the significance of focusing on k2 when studying enzyme-catalyzed reactions?

19PRACTICE PROBLEM

How does the initial reaction velocity relate to the graphical representation of product concentration over time?

20PRACTICE PROBLEM

Which rate constant increases the product concentration in enzyme-catalyzed reactions?

Enzyme Kinetics Practice Problems Reaction Orders Practice Problems

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