Micro Test 2

Front 1

The most abundant white blood cells in a blood sample from a healthy individual are:

Back 1

Neutrophils.

Front 2

The cell surface molecules used by the immune system to recognize “self” are:

Back 2

MHC molecules.

Front 3

Which of the following is a molecular component of innate defenses?

Back 3

complement

Front 4

The ____ play a key role in initiating the immune response.

Back 4

Macrophages

Front 5

B-cells that become plasma cells produce large quantities of:

Back 5

antibodies.

Front 6

The antibody function of “gluing” pathogens together and inhibiting their growth is known as:

Back 6

agglutination.

Front 7

Which class of antibody is found primarily in the mucus lining body cavities?

Back 7

IgA.

Front 8

A disorder such as agammaglobulinemia in which one or more functions of the immune system is lacking is known as:

Back 8

immunodeficiency

Front 9

The highly specific line of defense against invading pathogens is known as

Back 9

acquired immunity.

Front 10

Fixed macrophages of the skin are called:

Back 10

Langerhans (dendritic) cells.

Front 11

Which of the following is NOT a part of the innate defenses?

Back 11

helper T-cells

Front 12

Which of the following is the correct order for the relative abundance of white blood cells, from greatest to least, in the blood of a normal healthy person?

Back 12

Neutrophil, Lymphocyte, Monocyte/Macrophage, Eosinophil, Basophil.

Front 13

Molecules on the surface of cells that the immune system uses to distinguish "self" from foreign are:

Back 13

MHC molecules.

Front 14

When IgE antibodies react to ___, the response may lead to the inflammation known as allergic reaction.

Back 14

allergens.

Front 15

Molecules produced during virus invasion that aid cells in resisting virus infection and increase NK cell attack on virus-infected cells are:

Back 15

interferons.

Front 16

The process known as the complement cascade kills pathogens by:

Back 16

creating holes in cell membranes.

Front 17

The microbiota (microbial flora) of the body have no role in protecting the body from infection.

Back 17

false

Front 18

Cells of the acquired immune system that primarily target virus-infected cells are:

Back 18

Cytotoxic T-cells.

Front 19

Neutrophils kill pathogens by:

Back 19

phagocytosis.

Front 20

The process of phagocytes moving toward the source of chemokines or other cytokines is known as:

Back 20

chemotaxis.

Front 21

__ is a component of sweat and tears that helps prevent bacterial infection by damaging bacterial cell walls.

Back 21

Lysozyme.

Front 22

Macrophages use ___ to present antigen to lymphocytes.

Back 22

MHC II

Front 23

T-cells (T lymphocytes) mature in the :

Back 23

thymus.

Front 24

The type of protection from disease provided by the cytotoxic T-cells is called ____ immunity.

Back 24

cellular

Front 25

Naive lymphocytes require __ to become "activated" and participate in the fight against infection.

Back 25

presentation of the epitope for which they are specific.
b. a specific set of cytokines.
at the same time

Front 26

The white blood cells of the innate defenses that also participate directly in the activation of lymphocytes are:

Back 26

Macrophages.

Front 27

The ___ are the white blood cells that coordinate the acquired immune response.

Back 27

helper T-cells.

Front 28

Each mature, activated B-lymphocyte produces a single class of antibody specific for a single epitope.

Back 28

true

Front 29

Interleukin (IL) ___ is involved in promoting a cellular (Type 1) immune response.

Back 29

12

Front 30

Which of the following is NOT true of the process by which B-cells create their unique antibody molecules?

Back 30

Different genetic elements are spliced together.

Front 31

The white blood cells primarily responsible for attacking helminth parasites are:

Back 31

Eosinophils.

Front 32

The class of antibody primarily found in the blood is:

Back 32

IgG.

Front 33

The antibody function known as ___ inactivates toxins.

Back 33

neutralization

Front 34

An autoimmune disease in which the immune system attacks and destroys the myelin sheath of neurons is known as:

Back 34

multiple sclerosis.

Front 35

All of the following may become "memory cells" after an infection EXCEPT:

Back 35

plasma cells.

Front 36

Classic systemic lupus erythmatosis is characterized by the presence of:

Back 36

antibodies specific for DNA.

Front 37

Which of the following is a concern for attenuated vaccines?

Back 37

They can, on rare occasion, cause the disease they are intended to prevent.

Front 38

Gammaglobulin is used to:

Back 38

provide short term, immediate immunity.

Front 39

The tetanus vaccination (tetanus toxoid) is an example of a ___ vaccine.

Back 39

extract subunit

Front 40

The inflammatory response is sometimes harmful.

Back 40

true

Front 41

Monoclonal antibodies (mouse antibodies of defined specificity) are used in:

Back 41

immunoassays.
c. immunotherapy
Both