[Recalls] Falalala - Immunology

Question 1

Secreted by T-cell after stimulation with specific antigen.

Answer 1

ANS: IFN γ

Question 2

A group of serum proteins that can lyse gram negative bacteria that have antibody on their surface.

Answer 2

ANS: Complement

Question 3

A product of macrophages that induces an antiviral state in neighboring cells.

Answer 3

ANS: Interferon α

Question 4

Product of lipoxygenase pathway, attracts PMNs, macrophages and eosinophils.

Answer 4

ANS: Leukotriene B4

Question 5

Released during degranulation of mast cells also attracts PMNs.

Answer 5

ANS: Eosinophil Chemotactic Factor

Question 6

Activates alternative complement pathway to produce C5a ; attracts PMNs

Answer 6

ANS: Endotoxin

Question 7

Serum proteins that can lyse gram-negative bacteria that have antibody on their surface

Answer 7

ANS: Complement

Question 8

Destroys cell wall of gram-positive bacteria.

Answer 8

ANS: Lysozyme

Question 9

A product of macrophages that induces an antiviral state in neighboring cells

Answer 9

ANS: interferon α

Question 10

Secreted by T-cells after stimulation with a specific antigen.

Answer 10

ANS: Interferon γ

Question 11

Has a half-life of approximately 21 days.

Answer 11

ANS: IgG

Question 12

An elevated level in core blood may indicate fetal infection.

Answer 12

ANS: IgM

Question 13

Predominant immunoglobulin in various secretions.

Answer 13

ANS: IgA

Question 14

Predominant immunoglobulin in early (primary) response.

Answer 14

ANS: IgM

Question 15

Crosses the placenta in humans.

Answer 15

ANS: IgG

Question 16

Functions as helper in antibody response.

Answer 16

ANS: T-cell

Question 17

Functions as suppressor cell.

Answer 17

ANS: T-cell

Question 18

Phagocytize and processes antigen in the immune response.

Answer 18

ANS: macrophage

Question 19

Targets B cells and cause growth and differentiation.

Answer 19

ANS: TNF-α

Question 20

Targets B cells to cause class switching to IgA.

Answer 20

ANS: IL-5

Question 21

Targets T-cells, B-cells or macrophages to cause lymphocyte activation or increase cell adhesion.

Answer 21

ANS: IL-1

Question 22

Targets B-cells to cause class switching; promotes IgG and IgE production.

Answer 22

ANS: IL-4

Question 23

Neutralizes virus activities.

Answer 23

ANS: C4

Question 24

Stabilized by properdin.

Answer 24

ANS: C3bBb

Question 25

Promotes opsonization.

Answer 25

ANS: C3b

Question 26

Provokes release of neutrophils from bone marrow.

Answer 26

ANS: C3e

Question 27

Transfer of skin from thigh to the face.

Answer 27

ANS: Autologous

Question 28

Cadaver kidney transplant.

Answer 28

ANS: Allogenic

Question 29

Bone marrow transplant from mother to daughter.

Answer 29

ANS: Allogenic

Question 30

Bone marrow transfer between identical twins.

Answer 30

ANS: Syngeneic

Question 31

Damages target cell membranes to cause cell death.

Answer 31

ANS: perforin

Question 32

Anti-tumor factor that depresses protein synthesis in the target cell and causes the production of toxic free radicals.

Answer 32

ANS: tumor necrosis factor α

Question 33

Causes the tumor cell to increase the concentration of MHC molecules in the membranes, thus, making them more susceptible to cytotoxic T-cell killing.

Answer 33

ANS: Interferon γ

Question 34

Activates natural killer cells and cytotoxic T-cells to cause cancer remission.

Answer 34

ANS: Interleukin 2

Question 35

Pattern recognition receptors include:

Answer 35

ANS: Lectin-like molecules

Question 36

Anaphylaxis can be triggered by cross-linking of IgE receptors on

Answer 36

ANS: Mast cells