Question

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

A. hapten.

B. immunoglobulin.

C. natural killer cell.

D. major histocompatibility complex (MHC) protein.

Answer 1

d

Step-by-step 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.