Chapter 9

Question 0

A person has had her thymus removed due to the presence of a tumor what sort of deficiency may she experience as a result

Answer 0

A decrease in the immune response an increase in susceptibility to infection.

Question 1

Vaccines __________

Answer 1

Have a very slight potential to cause disease

Question 2

Specific immunity is due primarily to the actions of which so

Answer 2

B cells and T cells.

Question 3

Which of the following statements about viruses this true

Answer 3

Viruses require a host cell in which to produce

Question 4

Which of the following is a benefit of resident bacteria

Answer 4

Resident bacteria can out compete harmful bacteria and lower the incidence of infection

Question 5

Steps in phagocytosis

Answer 5

Approaches bacteria
Engulfs bacteria
Fuses w lysosomes
Digested

Question 6

Each of the following processes helps the combat infection except

Answer 6

Autoimmunity

Question 7

Primary immune response is

Answer 7

Less effective than the secondary immune response

Question 8

Compared to active immunization, passive immunization

Answer 8

Provides immediate protection

Question 9

Which of the following increases the likelihood of successful organ transplant

Answer 9

All of the choices

Question 10

Which is mismatched

Answer 10

Thymus- regulates the maturation and activation of macrophages

Question 11

Well could be a consequence of taking antibiotic medicines for a prolonged period of time

Answer 11

A loss of friendly bacteria in the digestive track

Question 12

Memory cells are formed by

Answer 12

B cells and T cells

Question 13

The most common immunoglobulin in the body is

Answer 13

IgG

Question 14

The smallest known infectious agents containing Dna or rna are

Answer 14

Viruses

Question 15

Why does HIV or AIDS have such a devastating effect on the immune system’s response

Answer 15

Without helper T lymphocytes, specific immunity cannot be activated.

Question 16

All of the following are participants in cell mediated immunity except

Answer 16

Antibodies

Question 17

Which is not associated with the inflammatory response

Answer 17

Cytotoxic T cells

Question 18

Which of the following is not an autoimmune disorder

Answer 18

Aids

Question 19

Fever and inflammation are considered to be nonspecific defenses.

Answer 19

True

Question 20

Secondary immune responses produce fewer antibodies than primary responses.

Answer 20

False

Question 21

The function of lymph nodes is to filter pathogens and damaged cells from the lymph before it returns to the cardiovascular system.

Answer 21

True

Question 22

Autoimmune disorders can result from an inability to produce antibodies.

Answer 22

False

Question 23

Cytotoxic T cells may release complement to destroy an infected body

Answer 23

False

Question 24

During phase I of AIDS, opportunistic infections appear.

Answer 24

False

Question 25

Lysozyme is an antimicrobial enzyme found in tears and

Answer 25

True

Question 26

IgE antibodies are the rarest of the five types of immunoglobins and involved in an allergic response.

Answer 26

True

Question 27

The health risk of a pathogen is determined by its transmissibility and its virulence.

Answer 27

True

Question 28

Memory cells may inhibit the immune response after an antigen has been neutralized.

Answer 28

False

Question 29

B cells and T cells are two types of lymphocytes that are both formed in bone marrow but mature in different locations in the body.

Answer 29

True

Question 30

Receiving a vaccine results in passive immunization.

Answer 30

False

Question 31

Variant Creutzfeldt-Jakob disease is caused by a virus.

Answer 31

False

Question 32

The human immunodeficiency virus specifically targets B cells.

Answer 32

False

Question 33

MHC incompatibility causes rejection of transplanted organs and at least a 75% match is needed for successful transplants between unrelated people.

Answer 33

True

Question 34

Which of the following is a group of proteins that interferes with viral infection and nonspecific defense mechanisms

Answer 34

Interferons