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

17. The Blood

Erythrocytes: Hemoglobin

Anatomy & Physiology

17. The Blood

Erythrocytes: Hemoglobin

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Multiple Choice

Which molecule in erythrocytes is responsible for carrying oxygen and some carbon dioxide?

Albumin

Myoglobin

Fibrinogen

Hemoglobin

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Verified step by step guidance

Understand the role of erythrocytes: Erythrocytes, or red blood cells, are primarily responsible for transporting oxygen from the lungs to the tissues and returning carbon dioxide from the tissues to the lungs.

Identify the molecule responsible for oxygen transport: Hemoglobin is the protein molecule in erythrocytes that binds to oxygen in the lungs and releases it in the tissues.

Explore the structure of hemoglobin: Hemoglobin is composed of four subunits, each containing an iron atom that can bind to one oxygen molecule, allowing each hemoglobin molecule to carry up to four oxygen molecules.

Consider the role of hemoglobin in carbon dioxide transport: Hemoglobin also plays a role in transporting carbon dioxide, although it primarily carries oxygen. Carbon dioxide can bind to hemoglobin, but it is mostly transported in the blood as bicarbonate ions.

Differentiate hemoglobin from other proteins: Albumin, myoglobin, and fibrinogen have different functions. Albumin is involved in maintaining osmotic pressure, myoglobin stores oxygen in muscle cells, and fibrinogen is involved in blood clotting.