Microbiology - Exam 1

Question 1

Type of non-specific cell that kills virus infected cells and tumor cells that contains no memory

Answer 1

natural killer cell

Question 2

Non-specific defense process that is a series of proteins activated by pathogens

Answer 2

complement

Question 3

Non-specific defense chemical that is secreted by virus infected cells that alerts non-infected cells that a virus is present

Answer 3

interferon

Question 4

Fever producing protein found in the vacuoles of phagocytic cells

Answer 4

interleukin-1

Question 5

Non-specific defense mechanism that increases the efficiency of phagocytosis and speeds blood flow to an area

Answer 5

fever

Question 6

The most common phagocytic WBC

Answer 6

neutrophil

Question 7

Circulating phagocyte that migrates to tissue

Answer 7

monocyte

Question 8

Monocyte that has enlarged and differentiated in tissue

Answer 8

macrophage

Question 9

Type of immunity whose defense is unique to a species

Answer 9

innate

Question 10

Type of immunity whose defense results from exposure to pathogens or foreign substances

Answer 10

acquired

Question 11

Type of immunity that occurs when the body is exposed unintentionally to a pathogen and mounts a defense

Answer 11

naturally acquired immunity

Question 12

Type of immunity that occurs when the body is exposed intentionally to a pathogen for the purposes of developing immunity

Answer 12

artificially acquired immunity

Question 13

Type of immunity that occurs when the body develops its own antibodies to protect against an antigen

Answer 13

active immunity

Question 14

Type of immunity that occurs when antibodies created elsewhere are introduced to the body

Answer 14

passive immunity

Question 15

Type of lymphocyte that directly attacks invading antigens

Answer 15

T lymphocyte

Question 16

Type of lymphocyte that produces antibodies that fight infection

Answer 16

B lymphocyte

Question 17

Type of immunity that involves T lymphocytes

Answer 17

cell mediated immunity

Question 18

Type of immunity that involves B lymphocytes

Answer 18

humoral immunity

Question 19

Type of T lymphocyte that moves to an antigen and destroys it

Answer 19

cytotoxic T cell

Question 20

Type of T lymphocyte that recognizes antigen on the macrophage and assists the interaction of the B cell and macrophage

Answer 20

helper T cell

Question 21

Type of T lymphocyte that guards against overproduction of antibodies and cytotoxic T cells

Answer 21

suppressor T cell

Question 22

Type of T lymphocyte that is left over and remembers a particular antigen so that a defense can be quickly mounted if the same antigen reappears

Answer 22

memory T cell

Question 23

Substance secreted by help T cells that stimulates other helper and cytotoxic T cells to grow and divided

Answer 23

interleukin-2

Question 24

Another name for antibody mediated immunity

Answer 24

humoral

Question 25

Another name for antibody

Answer 25

immunoglobulin

Question 26

Most abundant immunoglobulin which is found in blood plasma

Answer 26

IgG

Question 27

Large immunoglobulin that cannot leave the bloodstream or cross the placenta

Answer 27

IgM

Question 28

Immunoglobulin found in secretions

Answer 28

IgA

Question 29

Immunoglobulin found in plasma that has receptor sites on the surface of B cells

Answer 29

IgD

Question 30

Cell that carries around information about antigens that the body has fought off, so that a new defense can be mounted quickly if the antigen reappears

Answer 30

memory cell

Question 31

First phase of the immune response in which there is rapid production of antibodies by plasma cells and inactivation of antigens

Answer 31

primary response

Question 32

Second phase of the immune response in which there is response by memory B cells that have laid dormant in lymphatic tissue which allows a rapid and intense response

Answer 32

secondary response