Which statement is TRUE about the CD4 subset of T cells?Select one alternative:They recognise peptides presented by MHC class I.They recognise peptides presented by MHC class II.They kill cells that have phagocytosed bacteria.They kill virally infected cells.

MHC class I is BEST DESCRIBED by which statement?Select one alternative:It presents viral peptides to CD8 T cells.It presents foreign peptides to CD4 T cells.It captures foreign peptides from extracellular pathogens.It is only expressed on specialised antigen presenting cells.

The major histocompatibility complex type I (MHC I) __________.ANSWERinteracts with CD4 on T helper cellsis found only on antigen-presenting cellsis found on all body cells except red blood cellspresents extracellular antigens

Which of the following statements regarding T cell function is correct?A TCR on a mature T lymphocyte must be able to bind to self MHC.T cell development takes place in the bone marrow.MHC molecules are not involved in positive selection.A CD4 T cell can interacts with any cells with class I MHC.

Compared to the MHC molecule on the left, the MHC molecule on the right (in the drawing above) will bind a ______ peptide that, if foreign, will cause a T cell to activate and _________. The protein on the left is made up of two peptides, each with two domains. One peptide has domains labeled alpha 1 and 2, the other beta 1 and 2. The protein on the right is made up of two peptides, one with three domains labeled alpha 1, 2 and 3 and the other a single domain labeled beta MG.

Class I MHC molecule can ____________.bind to CD8 molecules on T cellspresent antigens to B cellsbind to CD4 molecules on T cellsbind to antibodies