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

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

Which of the following is an essential role played by bacteria in the large intestine?

Absorption of glucose

Digestion of proteins

Synthesis of vitamin K

Production of bile

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Verified step by step guidance

Understand the role of bacteria in the large intestine: Bacteria in the large intestine are crucial for various functions, including the synthesis of certain vitamins, fermentation of indigestible carbohydrates, and maintaining gut health.

Identify the vitamins synthesized by bacteria: Bacteria in the large intestine are known to synthesize vitamins such as vitamin K and some B vitamins. Vitamin K is essential for blood clotting.

Differentiate between the options: Absorption of glucose and digestion of proteins primarily occur in the small intestine, not the large intestine. Production of bile is a function of the liver, not bacteria.

Focus on vitamin synthesis: The synthesis of vitamin K by bacteria in the large intestine is a well-documented and essential function, supporting the body's need for this vitamin.

Conclude the essential role: Based on the understanding of bacterial functions in the large intestine, the synthesis of vitamin K is the correct essential role played by bacteria in this part of the digestive system.