Immunology MCQs PMU

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Pregunta 1

Pregunta
MHC class 1 mol. are associated with
Respuesta
  • Tc cell interaction with virally infected host cells
  • Th cell interaction with antigen-presenting cells
  • B cell interaction with antigen-presenting cells
  • B cell interaction with Th cells

Pregunta 2

Pregunta
The characteristics of antigen are:
Respuesta
  • foreign origin
  • non immunogenicity
  • specificity
  • antigenicity

Pregunta 3

Pregunta
Allergic urticarial is a manifestation of:
Respuesta
  • an IgE-mediated disorder
  • delayed hypersensitivity
  • an immune complex-mediated disorder
  • Tc cells

Pregunta 4

Pregunta
Which of the following are considered to be privileged tissues for grafting:
Respuesta
  • cornea
  • bone marrow
  • fetus
  • bone

Pregunta 5

Pregunta
Which Ab class is abundant in body secretions?
Respuesta
  • IgA
  • IgD
  • IgE
  • IgG

Pregunta 6

Pregunta
Inflammation:
Respuesta
  • aids in temporary repair at an injury site
  • slows the spread of pathogens
  • facilitates permanent repair
  • all of the above

Pregunta 7

Pregunta
Which of the following is NOT part of the body’s non-specific defense system?
Respuesta
  • inflammation
  • phagocytosis by neutrophils
  • phagocytosis by macrophages
  • antibodies

Pregunta 8

Pregunta
IL-2, produced by Th cells:
Respuesta
  • activates macrophages
  • stimulates Tc cells
  • causes phagocytosis
  • activates antigen-presenting cells

Pregunta 9

Pregunta
The specificity of an antibody is due to:
Respuesta
  • the heavy chains
  • the light chains
  • the constant regions of the heavy and light chains
  • the variable regions of the heavy and light chains

Pregunta 10

Pregunta
Which of the following are the effects of complement activation?
Respuesta
  • bacterial cell lysis
  • opsonization
  • increased phagocytic activity
  • interference with viral replication

Pregunta 11

Pregunta
Cytokines are soluble mediators of immune reactions.
Respuesta
  • True
  • False

Pregunta 12

Pregunta
Lymphocytes are large agranulocytes.
Respuesta
  • True
  • False

Pregunta 13

Pregunta
Interferon is produced by viruses.
Respuesta
  • True
  • False

Pregunta 14

Pregunta
T cells originate from stem cells in the bone marrow.
Respuesta
  • True
  • False

Pregunta 15

Pregunta
B cells recognize the Ag in a processed from.
Respuesta
  • True
  • False

Pregunta 16

Pregunta
Protooncogenes are mutated genes.
Respuesta
  • True
  • False

Pregunta 17

Pregunta
Tumor-specific antigens are non-immunogenic.
Respuesta
  • True
  • False

Pregunta 18

Pregunta
Tumor-associated antigens are typical of tumor cells only.
Respuesta
  • True
  • False

Pregunta 19

Pregunta
Follicular dendritic cells are APC.
Respuesta
  • True
  • False

Pregunta 20

Pregunta
Abs exert direct cytolysis.
Respuesta
  • True
  • False

Pregunta 21

Pregunta
Label the dots
Respuesta
  • MHC 2
  • Plasma Membrane
  • Cytoplasm
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