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

Major Histocompatibility Complex Molecules

Anatomy & Physiology

21. The Immune System

Major Histocompatibility Complex Molecules

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

Where are Major Histocompatibility Complex (MHC) molecules located on a cell?

In the cell nucleus

On the cell membrane

In the cytoplasm

In the mitochondria

Previous problemNext problem

Verified step by step guidance

Understand the role of Major Histocompatibility Complex (MHC) molecules: MHC molecules are crucial for the immune system to recognize foreign molecules in vertebrates, which helps in distinguishing self from non-self.

Identify the types of MHC molecules: There are two main classes of MHC molecules, Class I and Class II. Class I MHC molecules are present on almost all nucleated cells, while Class II MHC molecules are primarily on antigen-presenting cells.

Determine the location of MHC molecules: MHC molecules are located on the cell membrane. This positioning allows them to present peptide fragments to T cells, which is essential for immune response activation.

Consider the function of MHC molecules: By being on the cell membrane, MHC molecules can interact with T cells, facilitating the immune system's ability to detect and respond to pathogens.

Review the incorrect options: MHC molecules are not located in the cell nucleus, cytoplasm, or mitochondria, as these locations would not allow them to perform their function of presenting antigens to T cells.