Class 10 - Immunity

Question 1

innate immunity

Answer 1

first line of defense that is present at birth

Question 2

passive immunity

Answer 2

antibodies are passed on

Question 3

active immunity

Answer 3

body develops its own antibodies

Question 4

humoral response

Answer 4

antibody mediated immunity

Question 5

cell-mediated response

Answer 5

immune responses that are initiated through cell specific antigen recognition by T-cells

Question 6

cytokines

Answer 6

soluble factors secreted by WBC’s that act as messengers between the cell types

Question 7

interleukins

Answer 7

mediate communication between cells

Question 8

B-lymphocytes

Answer 8

come from bone marrow; involved in humoral immunity; produce antibodies

Question 9

T-lymphocytes

Answer 9

from thymus; involved in cell-mediated immunity;

Question 10

antigen

Answer 10

proteins that elicit an immune response

Question 11

antibody

Answer 11

used by the body to identify and neutralize foreign objects

Question 12

immunoglobulin

Answer 12

another word for antibody

Question 13

immunocompromised

Answer 13

unable to produce an active immune response

Question 14

immunosuppressed

Answer 14

reduced ability to fight infections and other diseases

Question 15

immunocompetent

Answer 15

body’s immune system can identify and inactivate or destroy foreign substances

Question 16

neutropenia

Answer 16

low count of neutrophils

Question 17

absolute neutrophil count

Answer 17

estimate of the body’s ability to fight infections; measures the number of neutrophils

Question 18

leukopenia

Answer 18

decrease in leukocytes

Question 19

leukocytosis

Answer 19

increase levels of leukocytes

Question 20

atopic

Answer 20

inherited tendency to become sensitive to environmental allergens

Question 21

anaphylaxis

Answer 21

severe allergic reaction where atleast 2 body systems are involved

Question 22

hemolytic reaction

Answer 22

reaction after blood transfusion

Question 23

allergic response

Answer 23

immune system overreacts

Question 24

auto-immune disorder

Answer 24

impairment of one or more immune mechanisms

Question 25

delayed hypersensitivity

Answer 25

type 4 response; sensitized T-lymphocytes attack antigens or release cytokines that attract macrophages causing tissue damage

Question 26

cytotoxic/cytolytic

Answer 26

type 2 response; direct binding of IgG and IgM antibodies to an antigen = target cells are frequently destroyed

Question 27

live vaccine

Answer 27

live virus is injected

Question 28

inactivated vaccine

Answer 28

inactive virus is injected