Multiple Choice
Which of the following organisms is most commonly associated with causing epidemic meningitis cases at college campuses?
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21. The Immune System
Introduction to the Immune System
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Which of the following cells cannot act as antigen-presenting cells?
A
Dendritic cells
B
B cells
C
Macrophages
D
Neutrophils
Verified step by step guidance1
Understand the role of antigen-presenting cells (APCs): APCs are crucial in the immune response as they process and present antigens to T cells, initiating an adaptive immune response.
Identify the common types of APCs: Dendritic cells, B cells, and macrophages are well-known APCs. They have the ability to present antigens to T cells using major histocompatibility complex (MHC) molecules.
Examine the function of neutrophils: Neutrophils are primarily involved in the innate immune response. They are phagocytic cells that engulf and destroy pathogens but do not typically present antigens to T cells.
Compare the roles: While dendritic cells, B cells, and macrophages can present antigens, neutrophils are not equipped with the necessary mechanisms to act as APCs.
Conclude based on the comparison: Neutrophils, unlike the other cells listed, do not function as antigen-presenting cells in the immune system.
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