Multiple Choice
Once an MHC II molecule on an APC presents an antigen:
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21. The Immune System
Major Histocompatibility Complex Molecules
Multiple Choice
MHC class II molecules are found on:
A
Basophils & macrophages.
B
B cells & Neutrophils.
C
Macrophages & Dendritic cells.
D
T helper cells & Macrophages.
E
All antigen presenting cells (APCs).
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Verified step by step guidance1
Understand the role of MHC class II molecules: These molecules are crucial for the immune system, specifically in presenting antigens to T helper cells.
Identify the types of cells that express MHC class II molecules: These are primarily antigen-presenting cells (APCs), which include macrophages, dendritic cells, and B cells.
Recognize that basophils and neutrophils are not typically involved in antigen presentation and do not express MHC class II molecules.
Note that T helper cells interact with MHC class II molecules but do not express them themselves; they are the recipients of the antigen presentation.
Conclude that the correct answer involves macrophages and dendritic cells, as these are key APCs that express MHC class II molecules.
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