Quiz 7

Which process involves antibodies covering surface receptors on a virus or toxin molecule there by disrupting their activity? A. Neutralization B. Agglutination C. Opsonization D. Complement fixation

A. Neutralization

Helper T cells ________. A. activate B cells and other T cells B. secrete antibodies C. directly destroy target cells D. function in allergic reactions

A. activate B cells and other T cells

The progeny cells of a B-cell clone are called ________. A. plasma cells B. activated macrophages C. bursa cells D. antibodies

A. plasma cells

Plasma cells ________. A. secrete antibodies B. function in allergic reactions C. activate B cells and other T cells D. directly destroy target cells

A. secrete antibodies

Class I MHC genes code for ________. A. self receptors recognized by T lymphocytes B. certain secreted complement components C. all HLA antigens D. receptors located primarily on macrophages and B cells

A. self receptors recognized by T lymphocytes

The region of each antibody molecule where amino acid composition is highly varied from one clone of B lymphocytes to another is the ________. A. variable region B. joining region C. light region D. constant region

A. variable region

A foreign molecule that causes a specific immune response is a(n) ________. A. antibody B. antigen C. hapten D. PAMP

B. antigen

Class III MHC genes code for ________. A. self receptors recognized by T lymphocytes B. certain secreted complement components C. all HLA antigens D. receptors located primarily on macrophages and B cells

B. certain secreted complement components

What is the function of B-cells? A. activate B cells and other T cells B. secrete antibodies C. directly destroy target cells D. function in allergic reactions

B. secrete antibodies

Which process involves coating the bacterium which increases the efficacy of phagocytosis? A. Neutralization B. Agglutination C. Opsonization D. Complement fixation

C. Opsonization

Destruction of lymphocytes with self specificity is called ________. A. differentiation B. proliferation C. clonal deletion D. clonal selection

C. clonal deletion

Cytotoxic T cells ________. A. activate B cells and other T cells B. secrete antibodies C. directly destroy target cells D. function in allergic reactions

C. directly destroy target cells

Class II MHC genes code for ________. A. self receptors recognized by T lymphocytes B. certain secreted complement components C. receptors located primarily on macrophages and B cells D. All HLA antigens

C. receptors located primarily on macrophages and B cells

Acquired specific immunity involves the response of ________. A. lysozyme B. interferon C. complement cascade D. B and T lymphocytes

D. B and T lymphocytes

Which process involves antibodies interacting with the complement proteins? A. Neutralization B. Agglutination C. Opsonization D. Complement fixation

D. Complement fixation

Regulatory T cells ________. A. activate B cells and other T cells B. secrete antibodies C. directly destroy target cells D. function in allergic reactions

D. function in allergic reactions