Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

3. Energy & Cell Processes

Enzyme Inhibition

Anatomy & Physiology

3. Energy & Cell Processes

Enzyme Inhibition

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Multiple Choice

The binding of an allosteric inhibitor to an enzyme causes the rate of product formation by the enzyme to decrease. Which of the following best explains why this decrease occurs?

The allosteric inhibitor binds to the active site, preventing the substrate from binding.

The allosteric inhibitor causes free energy change of the reaction to increase.

The allosteric inhibitor lowers the temperature of the active site.

The allosteric inhibitor binds to the substrate and prevents it from binding at the active site.

The allosteric inhibitor causes a structural change in the enzyme that prevents the substrate from binding at the active site.

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Verified step by step guidance

Understand the concept of allosteric inhibition: Allosteric inhibitors bind to a site on the enzyme other than the active site, known as the allosteric site. This binding causes a conformational change in the enzyme's structure.

Recognize the effect of the conformational change: The structural change in the enzyme alters the shape of the active site, which can prevent the substrate from binding effectively.

Eliminate incorrect options: The allosteric inhibitor does not bind to the active site directly, so it does not prevent substrate binding by occupying the active site itself.

Consider the energy and temperature options: Allosteric inhibitors do not typically change the free energy of the reaction or the temperature of the active site. These options are not relevant to the mechanism of allosteric inhibition.

Identify the correct explanation: The correct explanation is that the allosteric inhibitor causes a structural change in the enzyme that prevents the substrate from binding at the active site, thereby decreasing the rate of product formation.