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

2. Cell Chemistry & Cell Components

Biological Membranes

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Biological Membranes

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Multiple Choice

Which of the following structures functions in separating the interstitial fluid from the blood plasma?

Capillary endothelium

Plasma membrane of red blood cells

Basement membrane of epithelial cells

Mitochondrial membrane

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Verified step by step guidance

Understand the context of the question: The problem is asking about the structure that separates interstitial fluid from blood plasma. Interstitial fluid is the fluid found in the spaces between cells, while blood plasma is the liquid component of blood.

Review the anatomy of capillaries: Capillaries are the smallest blood vessels where exchange of substances occurs between blood and surrounding tissues. The capillary endothelium is the thin layer of cells lining the capillaries, which plays a key role in this exchange.

Analyze the function of the capillary endothelium: The capillary endothelium acts as a selective barrier, allowing certain substances to pass between the blood plasma and interstitial fluid while preventing others. This structure is crucial for maintaining homeostasis.

Evaluate the other options: The plasma membrane of red blood cells is involved in maintaining the integrity of red blood cells, not in separating interstitial fluid from blood plasma. The basement membrane of epithelial cells provides structural support and filtration in certain tissues, but it is not directly involved in separating interstitial fluid from blood plasma. The mitochondrial membrane is part of the organelle responsible for energy production and is unrelated to fluid separation.

Conclude that the capillary endothelium is the correct answer based on its anatomical location and physiological function in separating interstitial fluid from blood plasma.