Textbook Question
The nearby image is a transmission electron micrograph of a dendritic cell. Indicate where a scientist could find molecules of MHCI and MHC II. Label a pseudopod and a vesicle.
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20. Adaptive Immunity
Major Histocompatibility Complex Molecules
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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).
Verified step by step guidance1
Understand the role of MHC class II molecules: They 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).
List the main types of APCs: Macrophages, dendritic cells, and B cells are the primary APCs that express MHC class II molecules.
Evaluate the options given in the problem: Determine which options include cells that are known APCs.
Conclude that the correct answer is the option that includes macrophages and dendritic cells, as these are both well-known APCs that express MHC class II molecules.
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