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Which cells activate helper T-cells by antigen presentation?

B-cells B-cells
B. Bacteria
C. Macrophages
D. Plasma cells

User Ivan Sivak
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1 Answer

3 votes
C. Macrophages

When Macrophages approach a foreign pathogen they ingest the pathogens through phagocytosis, the Macrophages show the foreign antigen proteins on their cell surfaces.

The Helper T Cell recognizes the antigen on the surface of the macrophage and starts an immune response to the invading pathogen by sending out a chemical message

After that the B-cells produce antibodies that are specific to the antigens of the pathogens that slow them down so the macrophages can engulf them.

User Sefa
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