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 Heart2h 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

17. The Blood

Introduction To Blood

Anatomy & Physiology

17. The Blood

Introduction To Blood

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Multiple Choice

Which of the following factors has the greatest effect on making RBCs very efficient oxygen transporters?

They don't contain a nucleus.

They generate ATP by anaerobic mechanisms and do not consume any of the oxygen they carry.

They carry 20% of the carbon dioxide released by tissues back to the lungs.

They represent most of the formed elements in the blood.

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Verified step by step guidance

Understand the role of red blood cells (RBCs) in oxygen transport. RBCs are specialized cells that carry oxygen from the lungs to the tissues and return carbon dioxide from the tissues to the lungs.

Consider the structure of RBCs. They lack a nucleus and most organelles, which provides more space for hemoglobin, the protein that binds oxygen.

Analyze the metabolic processes of RBCs. They generate ATP through anaerobic glycolysis, meaning they do not use oxygen for energy production, allowing them to transport oxygen without consuming it.

Evaluate the efficiency of RBCs in terms of gas transport. While they do carry some carbon dioxide, their primary function is oxygen transport, and their lack of oxygen consumption enhances this efficiency.

Conclude that the anaerobic generation of ATP in RBCs is a key factor in their efficiency as oxygen transporters, as it allows them to carry oxygen without using it for their own metabolic needs.