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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

17. The Blood

Erythrocytes: Hemoglobin

Anatomy & Physiology

17. The Blood

Erythrocytes: Hemoglobin

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Multiple Choice

Which part of the hemoglobin molecule binds carbon dioxide for transport?

The heme group

The iron atom

The globin protein chains

The oxygen-binding site

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Verified step by step guidance

Understand the structure of hemoglobin: Hemoglobin is a protein composed of four subunits, each containing a heme group and a globin protein chain.

Identify the role of the heme group: The heme group contains an iron atom that primarily binds oxygen for transport in the blood.

Recognize the function of the globin protein chains: These chains are responsible for binding carbon dioxide. CO2 binds to the amino groups of the globin chains, forming carbaminohemoglobin.

Differentiate between the binding sites: The oxygen-binding site is located at the iron atom within the heme group, while carbon dioxide binds to the globin protein chains.

Conclude that the globin protein chains are the part of the hemoglobin molecule that binds carbon dioxide for transport.