chapter 21

Question 1

In the list below, which type of cell is involved in adaptive immunity?

Answer 1

b cells

Question 2

Which of the following is NOT a sign of inflammation?

Answer 2

fever

Question 3

The first step in inflammation is __________.

Answer 3

the release of inflammatory chemicals

Question 4

leukocytosis

Answer 4

. an increase in the number of white blood cells that are in circulation

Question 5

margination

Answer 5

clinging of phagocytic cells to the inner walls of the capillaries

Question 6

diapedesis

Answer 6

phagocytes squeeze through the capillary endothelium

Question 7

chemotaxis

Answer 7

white blood cells migrate to the site of tissue damage

Question 8

Which of the following is NOT a property of interferons (IFNs)?

Answer 8

IFNs stimulate B cells to produce antibodies.

Question 9

A moderate fever is a protective adaptive response.

Answer 9

True

Question 10

Humoral immunity is provided by __________.

Answer 10

antibodies

Question 11

__________ are substances that can trigger the adaptive defenses and provoke an immune response.

Answer 11

antigens

Question 12

__________ is the property of lymphocytes that prevents them from attacking the body’s own cells.

Answer 12

Self-tolerance

Question 13

Self-reactive B cells are eliminated in the __________.

Answer 13

bone marrow

Question 14

Which of the following is a characteristic of a secondary immune response?

Answer 14

A secondary immune response lasts longer than a primary immune response.

Question 15

A vaccination works to establish __________.

Answer 15

artificial active immunity

Question 16

IgG

Answer 16

most abundant class of antibodies

Question 17

IgM

Answer 17

large, pentamer shaped antibody

Question 18

IgA

Answer 18

dimeric antibody found in body secretions

Question 19

IgD

Answer 19

antigen receptor found on B cells

Question 20

IgE

Answer 20

antibody that mediates some allergies

Question 21

Which is correctly matched

Answer 21

ytotoxic T cells: activated by antigens bound to MHC I

Question 22

MHC II proteins are found on __________.

Answer 22

antigen-presenting cells

Question 23

What is the second step of T cell activation?

Answer 23

co-stimulation

Question 24

Which of the following is mismatched?

Answer 24

helper T cells: directly target and kill cancer cells

Question 25

A graft that is transplanted from one person to a genetically identical individual (i.e., to an identical twin) is an example of a(n) __________.

Answer 25

isograft

Question 26

severe combined immunodeficiency syndrome (SCID

Answer 26

genetic defect resulting in a shortage of B and/or T cells

Question 27

AIDS

Answer 27

condition in which T helper cells are destroyed by a virus

Question 28

rheumatoid arthritis

Answer 28

autoimmune disorder

Question 29

immediate hypersensitivity

Answer 29

allergy