Microbiology with Diseases by Body System

Robert W. Bauman

Chapter 16

Adaptive Immunity - all with Video Answers

Educators

Chapter Questions

Problem 1

Antibodies function to _____________.
a. directly destroy foreign organ grafts
b. mark invading organisms for destruction
c. kill intracellular viruses
d. directly promote cytokine synthesis
e. stimulate T cell growth

Jennifer Hudspeth

Jennifer Hudspeth

Numerade Educator

Problem 2

MHC class II molecules bind to _____________ and trigger _______________.
a. endogenous antigens; cytotoxic T cells
b. exogenous antigens; cytotoxic T cells
c. antibodies; $B$ cells
d. endogenous antigens; helper T cells
e. exogenous antigens; helper T cells

Patsy Naomi

Numerade Educator

Problem 3

Rejection of a foreign skin graft is an example of ______________ _________________.
a. destruction of virus-infected cells
b. tolerance
c. antibody-mediated immunity
d. a secondary immune response
e. a cell-mediated immune response

Eric Tran

Numerade Educator

Problem 4

An autoantigen is _________________.
a. an antigen from normal microbiota
b. a normal body component
c. an artificial antigen
d. any carbohydrate antigen
e. nucleic acid

Patsy Naomi

Numerade Educator

Problem 5

Among the key molecules that control cell-mediated cytotoxicity are _______________.
a. perforin
b. immunoglobulins
c. complement
d. cytokines
e. interferons

Patsy Naomi

Numerade Educator

Problem 6

Which of the following lymphocytes predominates in blood?
a. $\mathrm{T}$ cells
b. $\mathrm{B}$ cells
c. plasma cells
d. memory cells
e. All are about equally prevalent

Rashmi Sinha

Numerade Educator

Problem 7

The major class of immunoglobulin found on the surfaces of the walls of the intestines and airways is secretory _____________________.
a. IgG
b. IgM
c. IgA
d. IgE
e. IgD

Patsy Naomi

Numerade Educator

Problem 8

Which cells express MHC class I molecules in a patient?
a. red blood cells
b. antigen-presenting cells only
c. neutrophils only
d. all nucleated cells
e. dendritic cells only

Patsy Naomi

Numerade Educator

Problem 9

In which of the following sites in the body can B cells be found?
a. lymph nodes
b. spleen
c. red bone marrow
d. intestinal wall
e. all of the above

Patsy Naomi

Numerade Educator

Problem 10

Tc cells recognize epitopes only when the latter are held by ________________.
a. MHC proteins
b. $\mathrm{B}$ cells
c. interleukin 2
d. granzyme

Patsy Naomi

Numerade Educator