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

Enzyme-Substrate Complex

Biochemistry

6. Enzymes and Enzyme Kinetics

Enzyme-Substrate Complex

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Multiple Choice

After an enzyme catalyzes a reaction and the product is released, what typically happens to the enzyme?

The enzyme becomes part of the product formed.

The enzyme is permanently altered and cannot be reused.

The enzyme is degraded by the cell immediately after the reaction.

The enzyme is released unchanged and can catalyze another 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 reactions without being consumed or permanently altered in the process.

Recognize the mechanism of enzyme action: Enzymes bind to substrates at their active site, forming an enzyme-substrate complex, which facilitates the conversion of substrates into products.

Learn what happens after the reaction: Once the product is formed, it is released from the enzyme's active site, leaving the enzyme unchanged and ready to catalyze another reaction.

Clarify why enzymes are reusable: Enzymes are not part of the product, nor are they degraded or permanently altered during the reaction. This property allows them to participate in multiple reaction cycles.

Conclude with the correct answer: The enzyme is released unchanged and can catalyze another reaction, which is a fundamental characteristic of enzymes in biochemical processes.