How are the functions of major histocompatibility molecules and CD1 molecules alike?
A) They are both antigen-presenting molecules.
B) They both bind antigens to antibodies.
C) They both secrete interleukins during the immune process.
D) They are both capable of activating cytotoxic T lymphocytes.

Question

Quizplus · Accepted Answer

Both major histocompatibility molecules (MHC) and CD1 molecules are antigen-presenting molecules. MHC molecules present peptide antigens to T cells, while CD1 molecules present lipid antigens to T cells. Both types of molecules are critical for activating the immune response. However, MHC molecules are mainly involved in presenting antigens to CD4+ T helper cells and CD8+ cytotoxic T cells, while CD1 molecules present antigens to specialized T cells called CD1-restricted T cells.

How Are the Functions of Major Histocompatibility Molecules and CD1