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

21. The Immune System

Antigens

Anatomy & Physiology

21. The Immune System

Antigens

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Multiple Choice

Which statement correctly describes the relationship between antibodies and antigens?

Antigens are proteins that bind specifically to antibodies to neutralize them.

Antibodies are proteins that bind specifically to antigens to neutralize them.

Antibodies are lipids that bind to antigens to enhance their function.

Antigens are carbohydrates that bind to antibodies to initiate an immune response.

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Verified step by step guidance

Understand the basic definitions: Antibodies are proteins produced by the immune system to identify and neutralize foreign objects like bacteria and viruses. Antigens are substances that can induce an immune response, often by being recognized as foreign by the immune system.

Identify the role of antibodies: Antibodies specifically bind to antigens. This binding is a key part of the immune response, as it helps to neutralize or mark the antigen for destruction by other immune cells.

Clarify the nature of antibodies: Antibodies are proteins, not lipids. This is important because proteins have specific structures that allow them to bind to antigens with high specificity.

Clarify the nature of antigens: Antigens can be proteins, carbohydrates, or other molecules, but they are not limited to carbohydrates. Their main role is to be recognized by antibodies or immune cells to trigger an immune response.

Conclude with the correct relationship: The correct statement is that antibodies are proteins that bind specifically to antigens to neutralize them, which is a fundamental aspect of the immune response.