Nester's Microbiology: A Human Perspective

Denise Anderson, Sarah Salm, Deborah Allen

Chapter 15

The Adaptive Immune Response - all with Video Answers

Educators

Chapter Questions

Problem 1

The variable regions of antibodies are located in the
1. Fc region.
2. Fab region.
3. light chain.
4. heavy chain.
5. light chain and heavy chain.
a) 1,3
b) 1,5
c) 2,3
d) 2,4
e) 2,5

Joanna Quigley

Joanna Quigley

Numerade Educator

Problem 2

Which of the following statements about antibodies is false?
a) If you removed the Fc portion, antibodies would no longer be capable of opsonization.
b) If you removed the Fc portion, antibodies would no longer be capable of activating the complement system.
c) If you removed an Fab portion, an antibody would no longer be capable of cross-linking antigen.
d) If IgG were a pentamer, it would bind antigens more efficiently
e) If IgE had longer half-life, it would protect newborn infants.

Joanna Quigley

Numerade Educator

Problem 3

Which class of antibody can cross the placenta?
a) IgA
b) IgD
c) IgE
d) IgG
e) IgM

Joanna Quigley

Numerade Educator

Problem 4

A person who has been vaccinated against a disease should have primarily which of these types of serum antibodies against that agent 2 years later?
a) IgA
b) IgD
c) IgE
d) $\operatorname{Ig} G$
e) IgM

Joanna Quigley

Numerade Educator

Problem 5

Which of the following statements about B cells/antibody production is false?
a) $\mathrm{B}$ cells of a given specificity initially have the potential to make more than one class of antibody.
b) In response to antigen, all $\mathrm{B}$ cells located close to the antigen begin dividing.
c) Each $\mathrm{B}$ cell is programmed to make a single specificity of antibody.
d) The B-cell receptor allows B cells to detect antigen.
e) The cell type that makes and secretes antibody is called a plasma cell.

Joanna Quigley

Numerade Educator

Problem 6

Which term describes the loss of specific heavy chain genes?
a) Affinity maturation
b) Apoptosis
c) Clonal selection
d) Class switching

Joanna Quigley

Numerade Educator

Problem 7

Which of the following specifically refers to an effector lymphocyte?
a) B cell
b) CD8 T cell
c) CD4 T cell
d) Plasma cell

Joanna Quigley

Numerade Educator

Problem 8

Which markers are found on all nucleated cells?
a) MHC class I molecules
b) MHC class II molecules
c) $\mathrm{CD} 4$
d) $\mathrm{CD} 8$

Joanna Quigley

Numerade Educator

Problem 9

Which of the following are examples of an antigen-presenting cell (APC)?
1. Macrophage
2. Neutrophil
3. B cell
4. T cell
5. Plasma cell
a) 1,2
b) 1,3
c) 2,4
d) 3,5
e) 1,2,3

Joanna Quigley

Numerade Educator

Problem 10

What is the appropriate response when antigen is presented on MHC class II molecules?
a) An effector CD8 cell should kill the presenting cell.
b) An effector CD4 cell should kill the presenting cell.
c) An effector CD8 cell should activate the presenting cell.
d) An effector CD4 cell should activate the presenting cell.

Joanna Quigley

Numerade Educator