Test 3 Micro (2)

1.

1 point

Production of autoantibodies may be due to

emergence of forbidden clones of B cells

production of antibodies against sequestered tissues

infection-induces change in receptors

all of these are possible

2.

1 point

Which disease would be most similar to AIDS in its pathology

ADA deficiency

SCID

DiGeorge syndrome

X-linked agammaglobulinemia

3.

1 point

The best descriptive term for the resident bioto is

parasites

pathogens

mutalists

commensals

4.

1 point

Monocytes are ____ leukocytes that develop into ____.

granular, T cells

agranular, macrophages

agranular, mast cells

granular, phagocytes

5.

1 point

Which of the following can serve as antigen-presenting cells

T cells

Macrophages

Dendritic cells

Bcells

B, C, and D

6.

1 point

Tc Cells are important in controlling

virus infections

allergy

autoimmunity

all of these

7.

1 point

In humans B cells mature in the ___ and T cells mature in the ____

GALT, liver

bone marrow, thymus

lymph nodes, spleen

bursa, thymus

8.

1 point

Rheumatoid arthritis is an ____ that affects the _____

immunodeficiency disease, muscles

allergy, cartilage

autoimmune disease, nerves

autoimmune, joints

9.

1 point

An example of an exogenous pyrogen is

interleukin-1

interferon

complement

endotoxin

10.

1 point

The most likely interpretation of the isolation of 80 colonies of various streptococci on a culture from a throat swab is

normal biota

probable infection

contamination

11.

1 point

The primary B cell receptor

IgA

IgG

IgD

IgE

12.

1 point

Conjugated vaccines combine antigens and

adjuvants

epitopes

antibodies

foreign proteins

13.

1 point

Which nonspecific host defense is associated with the trachea?

ciliary lining

lacrimation

lactic acid

desquamation

14.

1 point

Which of the following methods can identify different strains of a microbe

microscopic examination

agglutination test

radioimmunoassay

DNA typing

15.

1 point

An outbreak caused by a batch of bad potato salad at a picnic is a ____ outbreak

point-source

common-source

propgates

all of the above

16.

1 point

Which of the following is the best description for antigen

None of the above

Molecule that stimulates the production of antibodies and reacts with those antibodies

Any substance that will cause the body to make antibody, in which in turn will chemically react with the antibody that is made.

A molecule that cannot bring about the immune response by itself, but can when conjugates with a larger carrier molecule

17.

1 point

Theoretically, type ___ blood can be donated to all persons because it lacks ____

AB, antigens

O, antibodies

AB, antibodies

O, antigens

18.

1 point

A/an ___ is a passive animal transporter of pathogens

Mechanical vector

Asymptomatic carrier

Zoonosis

Biological vector

19.

1 point

A vaccine that contains parts of viruses is called

subunit

recombinant

acellular

attenuated

20.

1 point

The western blot test can be used to identify

unknown antibodies

unknown antigens

specific DNA

both A and B

21.

1 point

Pollen is which type of allergen

inhalant

ingestant

contactant

injectant

22.

1 point

Which reaction requires complement?

hemolysis

hemaagultination

toxin neutralization

precipitation

23.

1 point

T ____ cells assist in the functions of certain B cells and other T cells

cytoxic

sensitized

natural killer

helper

24.

1 point

The ____ is the time that lapses between encounter with a pathogen and the first symptoms

period of incubation

prodrome

period of convalescence

Period of invasion

25.

1 point

Small simple molecules are ___ antigens

good

poor

never

herophilic

26.

1 point

Direct immunofluorescence tests use a labeled antibody to identify

an unknown microbe

fixed complement

an unknown antibody

agglutinated antigens

27.

1 point

An example of a nonspecific chemical barrier to infection is

cilia in respiratory tract

all of these

unbroken skin

lysozyme in saliva

28.

1 point

The Sabin vaccine is an example of

"Killed" viral vaccine

"Live" attenuated viral vaccine

DNA vaccine

Recombinant vaccine

29.

1 point

Which of the following substances is NOT produced by phagocytes to destroy engulfed microorganisms

superoxide anion

hydrogen peroxide

bradykinin

hydroxyl radicals

30.

1 point

Type II hypersensitivities are due to

IgG-allergen complexes that clog epithelial tissues

activation of cytotoxic T cells

complement-induced lysis of cells in the presence of antibodies

IgE reacting with mast cells

31.

1 point

An example of a type III immune complex disease is

graft rejection

serum sickness

contact dermatitis

atopy

32.

1 point

B cells are responsible for which allergies

asthma

anaphylaxis

tuberculin reactions

A and B

33.

1 point

Which of the following blood cells function primarily as phagocytes?

eosinophils

basophils

lymphocytes

neutrophils