Chapter 15

Question 1

Natural immunity

Answer 1

Acquired as part of normal life experiences

Question 2

Artificial immunity

Answer 2

Acquired through medical procedures such as immunization

Question 3

Natural Killer (NK) are responsible for…

Answer 3

Early killing of infected cells and cancer cells in response to various cytokines

Question 4

Displayed antigen fragments by APCs are recognized by…

Answer 4

T Helper Cells

Question 5

MCH I proteins interact with ___ cells, whereas MCH II proteins interact with ___ cells

Answer 5

CD8+; CD4+

Question 6

What is not a subclass of T Helper cells?

Answer 6

Tc

Question 7

Which cell releases cytokines and stimulates B cells?

Answer 7

T Helper cells 2

Question 8

Which cell produces antibodies?

Answer 8

Plasma cells

Question 9

Antibodies are involved in _______ immunity

Answer 9

Adaptive & humoral

Question 10

What cell can NOT be an antigen-presenting cell?

Answer 10

T Cell

Question 11

Which cell recognizes and kills self cells altered by viral infection?

Answer 11

Tc cells

Question 12

immunization is an example of…

Answer 12

artificially acquired active immunity

Question 13

During differentiation…

Answer 13

B cells differentiate into plasma cells and memory cells

Question 14

Lymphocytes secrete antibodies is…

Answer 14

Humoral immunity

Question 15

Lymphocytes secrete cytokines is…

Answer 15

Cell-mediated immunity

Question 16

Lymphocytes mature in the red bone marrow is…

Answer 16

Humoral immunity

Question 17

Lymphocytes mature in the thymus is…

Answer 17

Cell-mediated immunity

Question 18

Lymphocytes bind to processed antigens is…

Answer 18

Cell-mediated immunity

Question 19

Immunoglobulins bind to intact antigens…

Answer 19

Humoral immunity

Question 20

What are the 3 ways in which antibodies can increase phagocytosis?

Answer 20

1. Precipitation
2. Agglutination
3. Opsonization

Question 21

List the antibody classes:

Answer 21

IgG, IgA, IgM, IgE, IgD

Question 22

IgG

Answer 22

monomer
2 antigens
most numerous
neutralizes toxins & viruses across placenta

Question 23

IgA

Answer 23

mono or diamer
2 or 4 antigens
mucus surface
breast milk
resistance to stomach acid

Question 24

IgM

Answer 24

pentamer
10 antigen binding sites
made 1st by babies
appear 1st in infections

Question 25

IgD

Answer 25

monomer
2 antigens
receptor on B cells for antigen recognition

Question 26

IgE

Answer 26

monomer
2 antigens
involved in allergies & worms

Question 27

T cells mature in…

Answer 27

Thymus

Question 28

B cells mature in…

Answer 28

bone marrow

Question 29

Which immune response is carried out by B cells?

Answer 29

Humoral

Question 30

Cell-mediated immune response is carried out by…

Answer 30

T cells

Question 31

Helper T cells

Answer 31

help activate other WBC

Question 32

Which 2 cells produce histamine?

Answer 32

Basophils & mast cells

Question 33

Mast Cell

Answer 33

• dilate blood vessels & induce inflammation through histamine & heparin
• recruits macrophages & neutrophils
• involved in wound healing & defense against pathogens but can also be responsible for allergic reactions

Question 34

Macrophages

Answer 34

• phagocytic cell that consumes foreign pathogens & cancer cells
• stimulates response of other immune cells

Question 35

Natural Killer Cell

Answer 35

kills tumor cells & virus-infected cells

Question 36

Dendritic cells

Answer 36

Presents antigens on its surface, thereby triggering adaptive immunity

Question 37

Monocyte

Answer 37

differentiates into macrophage’s & dendritic cells in response to inflammation

Question 38

Basophil

Answer 38

responsible for defense against parasites

Question 39

Eosinophils

Answer 39

release toxins that kill bacteria & parasites but also causes tissue damage