Table of contents

1. Introduction to Biochemistry4h 34m
2. Water3h 23m
3. Amino Acids8h 10m
4. Protein Structure10h 4m
5. Protein Techniques14h 5m
6. Enzymes and Enzyme Kinetics13h 38m
7. Enzyme Inhibition and Regulation 8h 42m
8. Protein Function 9h 41m
9. Carbohydrates7h 49m
10. Lipids5h 49m
11. Biological Membranes and Transport 6h 37m
12. Biosignaling9h 45m
Review 1: Nucleic Acids, Lipids, & Membranes2h 47m
Review 2: Biosignaling, Glycolysis, Gluconeogenesis, & PP-Pathway3h 12m
Review 3: Pyruvate & Fatty Acid Oxidation, Citric Acid Cycle, & Glycogen Metabolism2h 26m
Review 4: Amino Acid Oxidation, Oxidative Phosphorylation, & Photophosphorylation1h 48m

6. Enzymes and Enzyme Kinetics

Enzymes

Biochemistry

6. Enzymes and Enzyme Kinetics

Enzymes

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Multiple Choice

How do enzymes affect the speed of a chemical reaction?

They change the equilibrium constant of the reaction.

They are consumed during the reaction, slowing it down.

They lower the activation energy, increasing the reaction rate.

They increase the activation energy, decreasing the reaction rate.

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Verified step by step guidance

Understand the role of enzymes in biochemical reactions: Enzymes are biological catalysts that speed up chemical reactions without being consumed in the process.

Learn about activation energy: Activation energy is the minimum energy required for a chemical reaction to occur. Enzymes work by lowering this energy barrier.

Explore how enzymes lower activation energy: Enzymes stabilize the transition state of the reaction, making it easier for reactants to convert into products.

Clarify the impact on reaction rate: By lowering the activation energy, enzymes increase the rate of the reaction, allowing it to proceed faster under physiological conditions.

Debunk misconceptions: Enzymes do not change the equilibrium constant of the reaction, nor are they consumed during the reaction. They also do not increase activation energy, as this would slow down the reaction.