What type of molecule is used to present foreign antigens on the surface of macr

Question

What type of molecule is used to present foreign antigens on the surface of macrophages and B cells? A) Major Histocompatability Complex I B) Major Histocompatability Complex II C) Major Complex III D) None of the above What type of molecule is used to present foreign antigens on the surface of red blood cells? A) Major Histocompatability Complex I B) Major Histocompatability Complex II C) Major Histocompatability Complex II D) None of the above Antigen presenting cells: A. are usually macrophages or relatives like dendritic cells B. can present viral antigens on MHC class II molecules C. help T cells recognize antigens D. all of the above Some large antigens with repeating antigenic determinants like polysaceharide chains in capsules, can sufficiently stimulate B cells to proliferate and produce antibodies and such antigens are called: A. T-dependent antigens B. B-antigens C. T-independent antigens D. B-independent antigens Most antigens are much smaller than those referred to in the question above and the B cells require the help of helper T cells to proliferate and produce antibodies - these smaller antigens are called: A. T-dependent antigens B. B-dependent antigens C. T-independent antigens D. B-independent antigens The process of placing antigenic determinants on MHC molecules, such as exogenous antigens that have been phagocytized by macrophages or endogenous antigens inside infected cells is called: A. Antigen deletion B. Antigen processing and presentation C. Antigen mounting D. Antigen exposure What type of cell typically becomes an antigen presenting cell (APC)? A. Macrophage B. Helper T cell C. Cytotoxic T cell D. Mast cell What type of cell typically binds to an antigen presenting cell (APC)? A. Macrophage B. Helper T cell C. Cytotoxic T cell D. B cell

Explanation / Answer

Ans-49- option b is correct I.e. major histocompatibility compound.

Ans-50- option d is correct I.e. none of above.

Ans-51- option d is correct I.e. all of above.

Ans-52- option c is correct I.e. t independent antigen.

Ans-53- option a is correct I.e. t dependent antigen.

Ans-54- option b is correct I.e. antigen processing and presentation.

Ans-55- option a is correct I.e. macrophages.

Ans-56-option c is correct I.e. cytotoxic t cells.

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