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Major Histocompatibility Complex (MHC) class 1 molecules A - VCE - SSCE Biology - Question 9 - 2012 - Paper 1
Question 9
Major Histocompatibility Complex (MHC) class 1 molecules A. release complement proteins. B. are found only on B and T cells. C. present foreign antigens to B and T c... show full transcript
Worked Solution & Example Answer:Major Histocompatibility Complex (MHC) class 1 molecules A - VCE - SSCE Biology - Question 9 - 2012 - Paper 1
Step 1
C. present foreign antigens to B and T cells.
Answer
MHC class 1 molecules are essential for the immune response as they present endogenous antigens (such as viral peptides) to CD8+ T cells (cytotoxic T cells). This process is crucial for the recognition of infected or malignant cells by the immune system. MHC class 1 molecules are expressed on almost all nucleated cells in the body.