Table of contents

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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

21. The Immune System

Antigens

Anatomy & Physiology

21. The Immune System

Antigens

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Multiple Choice

Antigens can be which of the following?

Proteins

Nucleic acids

Lipids

Carbohydrates

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Verified step by step guidance

Understand the definition of antigens: Antigens are substances that the immune system recognizes as foreign and can provoke an immune response.

Identify the types of molecules that can act as antigens: Antigens are typically proteins or polysaccharides, but they can also include other types of molecules.

Consider proteins: Proteins are the most common type of antigen because they have complex structures that are easily recognized by the immune system.

Evaluate nucleic acids: While not as common, nucleic acids can also act as antigens, especially in the context of viral infections where the immune system targets viral DNA or RNA.

Assess lipids and carbohydrates: Lipids and carbohydrates can also serve as antigens, particularly when they are part of larger structures like glycolipids or glycoproteins on cell surfaces.