Lymphocyte Maturation Involves

Question: A foreign molecule that causes a specific immune response is a/an

A.PAMP.

B.marker.

C.hapten.

D.antibody.

E.antigen.

Answer: E.antigen.

Question: Acquired specific immunity involves the response of

A.skin barriers.

B.B and T lymphocytes.

C.lysozyme.

D.mucus membranes.

E.interferon.

Answer: B.B and T lymphocytes.

Question: The embryonic yolk sac, the liver, and the bone marrow are sites where

A.immune responses to antigen occur.

B.stem cells give rise to immature lymphocytes.

C.antigen is filtered from the blood.

D.antigen is filtered from tissue fluid.

E.T lymphocytes complete maturation.

Answer: B.stem cells give rise to immature lymphocytes.

Question: The antibody-secreting progeny cells of a B-cell clone are called

A.antibodies.

B.sensitized T cells.

C.activated macrophages.

D.plasma cells.

E.bursa cells.

Answer: D.plasma cells.

Question: Helper T cells

A.secrete antibodies.

B.function in allergic reactions.

C.directly destroy target cells.

D.suppress immune reactions.

E.activate B cells and other T cells.

Answer: E.activate B cells and other T cells.

Question: Plasma cells

A.secrete antibodies.

B.function in allergic reactions.

C.directly destroy target cells.

D.suppress immune reactions.

E.activate B cells and other T cells.

Answer: A.secrete antibodies.

Question: Lymphocyte maturation involves

A.hormonal signals that initiate development.

B.B cells maturing in bone marrow sites.

C.T cells maturing in the thymus.

D.release of mature lymphocytes to begin migration to various lymphoid organs.

E.All of the choices are correct.

Answer: E.All of the choices are correct.

Question: What type of cells secrete antibodies?

A.memory B cells

B.cytotoxic T cells

C.plasma cells

D.helper T cells

E. antigen-presenting cells

Answer: C.plasma cells

Question: The major histocompatibility complex is

A.a set of glycoproteins, called MHC antigens, found on all body cells.

B.a set of genes that code for MHC glycoproteins.

C.found on the third chromosome.

D.located in the thymus gland.

E.All of the choices are correct.

Answer: B.a set of genes that code for MHC glycoproteins.

Question: Cell surface markers involved in immune reactions

A.are the result of genetic expression.

B.function in recognition of self molecules.

C.receive and transmit chemical messages among other cells of the system.

D.aid in cellular development.

E. All of the choices are correct.

Answer: E. All of the choices are correct.