Table of contents

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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

23. The Digestive System

Introduction to the Digestive System

Anatomy & Physiology

23. The Digestive System

Introduction to the Digestive System

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Multiple Choice

What is the role of pepsin in the digestion of proteins?

Pepsin emulsifies fats in the stomach.

Pepsin breaks down proteins into smaller peptides.

Pepsin converts carbohydrates into simple sugars.

Pepsin neutralizes stomach acid.

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Verified step by step guidance

Begin by understanding the role of pepsin in the digestive system. Pepsin is an enzyme that is crucial for the digestion of proteins in the stomach.

Recognize that pepsin is produced in the stomach lining as an inactive precursor called pepsinogen. It is activated by the acidic environment of the stomach.

Learn that pepsin specifically targets proteins, breaking them down into smaller peptides. This process is known as proteolysis.

Understand that pepsin does not emulsify fats, convert carbohydrates into sugars, or neutralize stomach acid. Its primary function is to break down proteins.

Consider the importance of pepsin in the overall digestive process, as it facilitates the absorption of amino acids and peptides in the small intestine.