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 type of enzyme inhibition is most likely to occur when an enzyme binds its product more tightly than its substrate?

Product inhibition

Competitive inhibition

Uncompetitive inhibition

Noncompetitive inhibition

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Verified step by step guidance

Understand the concept of enzyme inhibition: Enzyme inhibition occurs when a molecule reduces the activity of an enzyme, either by binding to the active site or another site on the enzyme. Different types of inhibition include competitive, uncompetitive, noncompetitive, and product inhibition.

Analyze the scenario: The problem states that the enzyme binds its product more tightly than its substrate. This suggests that the product itself is acting as an inhibitor, which is a key characteristic of product inhibition.

Review product inhibition: Product inhibition occurs when the product of an enzymatic reaction binds to the enzyme and prevents further catalysis. This typically happens at the active site, where the product competes with the substrate for binding.

Compare with other types of inhibition: Competitive inhibition involves a molecule competing with the substrate for the active site, but it is not necessarily the product of the reaction. Uncompetitive inhibition occurs when the inhibitor binds only to the enzyme-substrate complex, and noncompetitive inhibition involves binding to a site other than the active site, affecting enzyme activity regardless of substrate binding.

Conclude based on the information: Since the enzyme binds its product more tightly than its substrate, this aligns with the definition of product inhibition, making it the most likely type of inhibition in this scenario.