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

What is the primary role of enzymes in chemical reactions?

They lower the activation energy required for the reaction to proceed.

They are consumed during the reaction and become part of the products.

They provide energy to drive endergonic reactions directly.

They increase the equilibrium constant of the reaction.

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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.

Clarify the concept of activation energy: Activation energy is the minimum energy required for a chemical reaction to occur. Enzymes lower this energy barrier, making reactions proceed more efficiently.

Eliminate incorrect statements: Enzymes are not consumed during the reaction; they remain unchanged and can be reused. They do not directly provide energy for endergonic reactions, nor do they alter the equilibrium constant of a reaction.

Focus on the correct statement: The primary role of enzymes is to lower the activation energy required for the reaction to proceed, thereby increasing the reaction rate.

Relate this concept to real-world examples: For instance, enzymes like amylase help break down starch into glucose by lowering the activation energy of the hydrolysis reaction.