Immunology MCQs PMU

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Question 1

Question
MHC class 1 mol. are associated with
Answer
  • 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

Question 2

Question
The characteristics of antigen are:
Answer
  • foreign origin
  • non immunogenicity
  • specificity
  • antigenicity

Question 3

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

Question 4

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

Question 5

Question
Which Ab class is abundant in body secretions?
Answer
  • IgA
  • IgD
  • IgE
  • IgG

Question 6

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

Question 7

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

Question 8

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

Question 9

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

Question 10

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

Question 11

Question
Cytokines are soluble mediators of immune reactions.
Answer
  • True
  • False

Question 12

Question
Lymphocytes are large agranulocytes.
Answer
  • True
  • False

Question 13

Question
Interferon is produced by viruses.
Answer
  • True
  • False

Question 14

Question
T cells originate from stem cells in the bone marrow.
Answer
  • True
  • False

Question 15

Question
B cells recognize the Ag in a processed from.
Answer
  • True
  • False

Question 16

Question
Protooncogenes are mutated genes.
Answer
  • True
  • False

Question 17

Question
Tumor-specific antigens are non-immunogenic.
Answer
  • True
  • False

Question 18

Question
Tumor-associated antigens are typical of tumor cells only.
Answer
  • True
  • False

Question 19

Question
Follicular dendritic cells are APC.
Answer
  • True
  • False

Question 20

Question
Abs exert direct cytolysis.
Answer
  • True
  • False

Question 21

Answer
  • MHC 2
  • Plasma Membrane
  • Cytoplasm