객관식
The CD8 coreceptor is found on the surface of which cell type?
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21. The Immune System
Introduction to T Lymphocytes
객관식
What types of antigens are recognized by T cells?
A
Peptide antigens presented by MHC molecules
B
Nucleic acid antigens directly in the bloodstream
C
Polysaccharide antigens in their native form
D
Lipid antigens presented by CD1 molecules
검증된 단계별 안내1
Understand that T cells are a type of lymphocyte that play a central role in cell-mediated immunity.
Recognize that T cells do not recognize free-floating antigens. Instead, they recognize antigens that are presented by other cells.
Learn that peptide antigens are the primary type of antigens recognized by T cells. These peptides are typically derived from proteins that have been processed inside a cell.
Identify that Major Histocompatibility Complex (MHC) molecules are responsible for presenting peptide antigens to T cells. MHC class I molecules present to CD8+ T cells, while MHC class II molecules present to CD4+ T cells.
Note that T cells can also recognize lipid antigens, but these are presented by CD1 molecules, not MHC molecules. This is a less common pathway compared to peptide antigen presentation.
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