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

7. Enzyme Inhibition and Regulation

Enzyme Inhibition

Biochemistry

7. Enzyme Inhibition and Regulation

Enzyme Inhibition

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Multiple Choice

Which of the following describes what happens to an enzyme after an enzyme-catalyzed reaction is completed?

The enzyme is consumed as a reactant in the reaction.

The enzyme is permanently altered and cannot be reused.

The enzyme becomes part of the product formed.

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 by lowering the activation energy without being consumed or permanently altered in the process.

Recall the principle of enzyme functionality: Enzymes bind to substrates at their active site, form an enzyme-substrate complex, and facilitate the conversion of substrates into products. Once the reaction is complete, the enzyme is released unchanged.

Clarify the options provided: Analyze each statement to determine its accuracy. For example, enzymes are not consumed as reactants, nor are they permanently altered or part of the product.

Focus on the correct description: The enzyme remains unchanged after the reaction and is free to catalyze another reaction. This property allows enzymes to be reused multiple times.

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.