2020 Exam 4 review

A high level of pyrogens will reset the body temperature to a higher range by acting on the:

• thalamus

• hypothalamus

• pons

• medulla oblongata

Tags

NGSS.HS-LS1-3

Which part of an antibody binds to a specific antigen?

• constant region

• heavy chains

• variable region

• complement-binding region

Which is TRUE of class I MHC molecules?

• bind complement proteins

• present endogenous (from within the cell) antigens

• present exogenous (foreign) antigens

• only present on RBC cell surface

Which cells activate T cells?

• basophils

• B cells

• dendritic cells

• natural killer cells

Activated T cells differentiate into

• plasma cells and memory B cells

• memory B cells and memory T cells

• effector cells and memory T cells

• effector cells and plasma cells

Tags

NGSS.HS-LS1-4

What protein released by cytotoxic T cells pokes holes in a target cell membrane?

• interleukins

• interferons

• cytokines

• perforins

Which of the following secrete antibodies?

• plasma cells

• antigen-presenting cells

• dendritic cells

• memory B cells

Which antibody is the only one that can cross the placenta?

• IgM

• IgE

• IgG

• IgA

Clumping of cells caused by attachment to antibodies is called:

• neutralization

• opsonization

• agglutination

• precipitation

Vaccinations involve exposure to an antigen to produce:

• passive immunity

• a primary immune response

• severe allergic reaction

• a secondary immune response