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

What happens to an enzyme after it has catalyzed a reaction with its substrate?

The enzyme is permanently altered and cannot be reused.

The enzyme is released unchanged and can catalyze another reaction.

The enzyme is consumed as a reactant in the reaction.

The enzyme becomes part of the product formed.

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Verified step by step guidance

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

Recognize the enzyme-substrate interaction: Enzymes bind to their specific substrate at the active site, forming an enzyme-substrate complex. This interaction facilitates the conversion of the substrate into the product.

Clarify the post-reaction state of the enzyme: After the reaction, the enzyme releases the product and remains unchanged, ready to catalyze another reaction with a new substrate molecule.

Differentiate enzymes from reactants: Unlike reactants, enzymes are not consumed during the reaction. They are not part of the final product and can be reused multiple times.

Conclude the correct answer: Based on the properties of enzymes, the correct statement is that the enzyme is released unchanged and can catalyze another reaction.