Lymph/immune 3

Question 1

Immunity that is genetically determined
and present at birth is called \_\_\_\_\_
immunity.
A.	active
B.	natural passive
C.	passive
D.	auto
E.	innate

Answer 1

E. innate

Question 2

Immunoglobulins that attach to mast cells
and basophils and are involved in allergic
reactions are
A.	IgA.
B.	IgD.
C.	IgE.
D.	IgG.
E.	IgM.

Answer 2

C. IgE.

Question 3

Hormones of the immune system include
all of the following, except
A.	interleukins.
B.	interferons.
C.	natriuretic factor.
D.	chemicals that regulate phagocytes.
E.	tumor necrosis factors.

Answer 3

C. natriuretic factor.

Question 4

The cells known as lymphocytes
A.	are actively phagocytic.
B.	destroy red blood cells.
C.	produce proteins called antibodies.
D.	are primarily found in red bone marrow.
E.	decrease in number during infection.

Answer 4

C. produce proteins called antibodies.

Question 5

Antibodies are primarily effective against
\_\_\_\_\_ rather than \_\_\_\_\_.
A.	viruses; pathogens
B.	bacteria; viruses
C.	viruses; bacteria
D.	pathogens; viruses
E.	none of the above

Answer 5

B. bacteria; viruses

Question 6

Lymphoid stem cells that can form all
types of lymphocytes occur in the
A.	bloodstream.
B.	thymus.
C.	bone marrow.
D.	spleen.
E.	intestines.

Answer 6

C. bone marrow.

Question 7

Immunity that results from the natural
exposure to an antigen in the environment
is called \_\_\_\_\_ immunity.
A.	active
B.	natural passive
C.	passive
D.	auto
E.	innate

Answer 7

A. active

Question 8

Immunoglobulins that are found on the surface
of B cells and may play a role in regulation of
the humoral immune response are
A.	IgA.
B.	IgD.
C.	IgE.
D.	IgG.
E.	IgM.

Answer 8

B. IgD.

Question 9

Interleukins do all of the following,
except
A.	increase T-cell sensitivity to antigens exposed
on macrophage membranes.
B.	stimulate B-cell activity, plasma cell
formation, and antibody production.
C.	stimulate inflammation.
D.	elevate body temperature.
E.	stimulate fibrin formation.

Answer 9

E. stimulate fibrin formation.

Question 10

Lymphocytes are located in each of the
following tissues or organs, except the
A.	tonsils.
B.	spleen.
C.	lymph nodes.
D.	brain.
E.	thymus gland.

Answer 10

D. brain.

Question 11

Lymphatic vessels are located
everywhere, except the
A.	brain.
B.	central nervous system.
C.	spinal cord.
D.	throat.
E.	A, B, and C

Answer 11

E. A, B, and C

Question 12

Lymphoid tissue is found in the greatest
quantity in
A.	the adult spleen.
B.	the adult thymus.
C.	bone marrow.
D.	the tonsils.
E.	the intestines.

Answer 12

A. the adult spleen.

Question 13

Newborn infants gain most of their
immunity from
A.	early immunizations.
B.	contact with viruses and bacteria.
C.	antibodies passed from the mother across the
placenta.
D.	contact with siblings.
E.	innate factors.

Answer 13

C. antibodies passed from the mother across

the placenta.

Question 14

Immunoglobulins that are composed of five
single molecules joined together, and are the
first antibodies to be produced in response to
infection, are
A. IgA.
B. IgD.
C. IgE.
D. IgG.
E. IgM.

Answer 14

E. IgM.

Question 15

\_\_\_\_\_ are large lymphatic nodules that are
located in the walls of the pharynx.
A.	Tonsils
B.	Peyer’s patches
C.	Lymph nodes
D.	Immune complexes
E.	Spleens

Answer 15

A. Tonsils

Question 16

Immunity that results from antibodies that
pass the placenta from mother to fetus is
called \_\_\_\_\_ immunity.
A.	active
B.	natural passive
C.	passive
D.	auto
E.	innate

Answer 16

B. natural passive

Question 17

T cells and B cells can be activated only by
A. pathogens.
B. interleukins, interferons, and colony-stimulating
factors.
C. cells infected with viruses, bacteria, or cancer cells.
D. exposure to a specific antigen at a specific site in a
cell membrane.
E. disease-causing agents.

Answer 17

D. exposure to a specific antigen at a specific site in a

cell membrane.

Question 18

Class II MHC proteins appear in the cell
membrane only when
A.	the plasma cells are releasing antibodies.
B.	the cell is processing antigens.
C.	cytotoxic T cells are inhibited.
D.	NK cells are activated.
E.	none of the above

Answer 18

B. the cell is processing antigens.

Question 19

Immunoglobulins that are primarily found
in glandular secretions are
A.	IgA.
B.	IgD.
C.	IgE.
D.	IgG.
E.	IgM.

Answer 19

A. IgA.

Question 20

\_\_\_\_\_ are clusters of lymphatic nodules
located beneath the epithelial lining of the
small intestine.
A.	Tonsils
B.	Adenoids
C.	Peyer’s patches
D.	Immune complexes
E.	Lymph glands

Answer 20

C. Peyer’s patches