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Lady bird [3.3K]
3 years ago
15

Helper T (TH) cells recognize antigens when they are bound to a(n)

Biology
1 answer:
Zinaida [17]3 years ago
3 0

Answer:

d

Explanation:

Helper T cell and inflammatory T cell TCRs recognise epitopes displayed by MHC class II molecules on the surface of antigen-presenting immune cells, including: macrophages that engulf foreign particles such as bacteria; dendritic cells that present antigen to T cells; and B cells that produce antibodies.

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4 0
4 years ago
Thylakoids are arranged in stacks known as _______?
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