CHT Exam practice test Questions with verified
Answers (Latest Update 2026) UPDATE!!
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Terms in this set (223)
Which of the following is not a b. Thymus
secondary lymphoid organ?
a. Spleen
b. Thymus
c. Lymph nodes
d. Liver
e. Tonsils
Which of the following is not a d. Neutrophils
component of the
reticuloendothelial cell system?
a. Microglial cells
b. Kupffer cells
c. Langerhans cells
d. Neutrophils
e. Monocytes
,Opsonization is a term to describe b. Coating of bacteria
what?
a. Lysis of bacteria
b. Coating of bacteria
c. Ingestion of bacteria
d. Killing of bacteria
e. Phagocytosis
Which of the following does not b. They lyse bacteria
describe a role of antibodies in host
defense?
a. They serve as a bridge between
bacteria and phagocytes
b. They lyse bacteria
c. They enhance complement
binding to the bacterial cell wall
d. They prevent viruses from
infecting cells
e. They bind pathogens in mucus
secretions
MHC Class I and II molecules differ c. Which chromosome they are located on
in all of the following except
a. Types of T cells they stimulate
b. Types of cells they are expressed
on
c. Which chromosome they are
located on
d. Types of antigens they present
e. Whether or not they have foreign
peptides in the antigen-binding
groove
,The primary role of the proteasome b. Process cytoplasmic proteins
in antigen presentation is to
a. Prevent premature folding of
MHC class I molecules
b. Process cytoplasmic proteins
c. Degrade recycled MHC
molecules
d. Bind HLA-DM in the endosome
e. Chaperone peptides to the cell
surface
Peptides that bind to MHC class I c. They anchor in the middle instead of the end of
molecules differ from peptides that the MHC molecule
bind to MHC class II molecules in
all except which of the following
ways?
a. They are shorter
b. They were processed by different
proteases
c. They anchor in the middle instead
of the end of the MHC molecule
d. They interact with different
subsets of T cells
HLA-DM is primarily involved in the b. Loading antigen onto HLA-DR molecules
a. Activation of cytotoxic T cells
b. Loading antigen onto HLA-DR
molecules
c. Preventing HLA-A molecules
from folding prior to antigen
binding
d. Rejection of islet grafts
e. Induction of diabetes mellitus
, The antigen-binding site of an a. The variable region of the light and heavy
antibody is comprised of which of chains
the following?
a. The variable region of the light
and heavy chains
b. The variable region of the light
chain only
c. The entire light chain
d. The entire heavy chain
e. The Fc portion of the
immunoglobulin molecule
The immunoglobulin that binds the c. IgM
most complement is
a. IgA
b. IgD
c. IgM
d. IgG2
e. IgE
The immunoglobulin responsible e. IgE
for activating mast cells in an
allergic response is
a. IgA
b. IgD
c. IgM
d. IgG
e. IgE
Answers (Latest Update 2026) UPDATE!!
Save
Terms in this set (223)
Which of the following is not a b. Thymus
secondary lymphoid organ?
a. Spleen
b. Thymus
c. Lymph nodes
d. Liver
e. Tonsils
Which of the following is not a d. Neutrophils
component of the
reticuloendothelial cell system?
a. Microglial cells
b. Kupffer cells
c. Langerhans cells
d. Neutrophils
e. Monocytes
,Opsonization is a term to describe b. Coating of bacteria
what?
a. Lysis of bacteria
b. Coating of bacteria
c. Ingestion of bacteria
d. Killing of bacteria
e. Phagocytosis
Which of the following does not b. They lyse bacteria
describe a role of antibodies in host
defense?
a. They serve as a bridge between
bacteria and phagocytes
b. They lyse bacteria
c. They enhance complement
binding to the bacterial cell wall
d. They prevent viruses from
infecting cells
e. They bind pathogens in mucus
secretions
MHC Class I and II molecules differ c. Which chromosome they are located on
in all of the following except
a. Types of T cells they stimulate
b. Types of cells they are expressed
on
c. Which chromosome they are
located on
d. Types of antigens they present
e. Whether or not they have foreign
peptides in the antigen-binding
groove
,The primary role of the proteasome b. Process cytoplasmic proteins
in antigen presentation is to
a. Prevent premature folding of
MHC class I molecules
b. Process cytoplasmic proteins
c. Degrade recycled MHC
molecules
d. Bind HLA-DM in the endosome
e. Chaperone peptides to the cell
surface
Peptides that bind to MHC class I c. They anchor in the middle instead of the end of
molecules differ from peptides that the MHC molecule
bind to MHC class II molecules in
all except which of the following
ways?
a. They are shorter
b. They were processed by different
proteases
c. They anchor in the middle instead
of the end of the MHC molecule
d. They interact with different
subsets of T cells
HLA-DM is primarily involved in the b. Loading antigen onto HLA-DR molecules
a. Activation of cytotoxic T cells
b. Loading antigen onto HLA-DR
molecules
c. Preventing HLA-A molecules
from folding prior to antigen
binding
d. Rejection of islet grafts
e. Induction of diabetes mellitus
, The antigen-binding site of an a. The variable region of the light and heavy
antibody is comprised of which of chains
the following?
a. The variable region of the light
and heavy chains
b. The variable region of the light
chain only
c. The entire light chain
d. The entire heavy chain
e. The Fc portion of the
immunoglobulin molecule
The immunoglobulin that binds the c. IgM
most complement is
a. IgA
b. IgD
c. IgM
d. IgG2
e. IgE
The immunoglobulin responsible e. IgE
for activating mast cells in an
allergic response is
a. IgA
b. IgD
c. IgM
d. IgG
e. IgE
