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

Classes of Antibodies

Anatomy & Physiology

21. The Immune System

Classes of Antibodies

Previous problemNext problem

Struggling with Anatomy & Physiology?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Which of the following statements regarding antibody function is false?

Antibodies can opsonize pathogens, making them easier for phagocytes to engulf.

Antibodies can directly destroy pathogens by lysing their cell membranes.

Antibodies can neutralize pathogens by binding to them.

Antibodies can activate the complement system to enhance immune responses.

Previous problemNext problem

Verified step by step guidance

Understand the role of antibodies in the immune system: Antibodies are proteins produced by B cells that help identify and neutralize foreign objects like bacteria and viruses.

Review the process of opsonization: Antibodies can bind to the surface of pathogens, marking them for phagocytosis by immune cells such as macrophages and neutrophils.

Examine the concept of neutralization: Antibodies can neutralize pathogens by binding to them, preventing their interaction with host cells and thereby blocking infection.

Explore the activation of the complement system: Antibodies can initiate the complement cascade, a series of protein activations that enhance the ability of antibodies and phagocytic cells to clear pathogens.

Clarify the misconception about direct destruction: Antibodies themselves do not directly destroy pathogens by lysing their cell membranes; this is typically a function of other immune components like the complement system or cytotoxic cells.