Exogenous antigen is usually taken up by antigen-presenting cells through phagocytosis,processed,and presented to T cells on their surface by these.

Question

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Exogenous antigens are taken up by antigen-presenting cells through phagocytosis and are presented to T cells on their surface by MHC II molecules. MHC I molecules are involved in presenting endogenous antigens. Interleukin 2 molecules, tumor necrosis factor alpha and interferon gamma are not directly involved in antigen presentation.

Exogenous Antigen Is Usually Taken Up by Antigen-Presenting Cells Through