Public flashcard deck · 24 cards

Immunology Final 2017 questions - Answers

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1. Front

   Which cells are responsible for delayed type of hypersensitivity?
   Back

   Th1 cells and macrophages
2. Front

   Self-tolerance is mediated with the following mechanisms except:
   Back

   Immune deviation (Induction of regulatory T-cell development instead of effector T-cell development)
3. Front

   IgE antibody:
   Back

   Binds strongly to mast cells
4. Front

   In the type III allergic reaction (immune complexes) the first cells to occur at the site of reaction are:
   Back

   Neutrophils
5. Front

   Virally infected cells can be killed directly by:
   Back

   NK cells
6. Front

   Which of the following molecules is expressed by both effector and memory Th1 and Tc cells?
   Back

   IL-2R
7. Front

   Th2-type immune response is not characterized by:
   Back

   Cytotoxic effect on the target cell
8. Front

   Immunologic memory is based on which of the following?
   Back

   Expanded populations of antigen-specific lymphocytes
9. Front

   The adaptive immune system contributes to immune surveillance of the oral cavity by the secretion of:
   Back

   IgA
10. Front

    Protection against intracellular pathogen is provided by:
    Back

    T cells and NK cells
11. Front

    Suppression of Th1 cells by Th2 cells may be mediated by:
    Back

    IL-10
12. Front

    Acute inflammatory response is characterized by:
    Back

    All of the above
13. Front

    Antibodies
    Back

    Tag antigens for destruction and removal
14. Front

    T cell receptor recognizes
    Back

    Linear antigen peptide in the MHC groove
15. Front

    Which of the following sentences is true?
    Back

    Binding TLR4 with bacteria (LPS) activates APC cells
16. Front

    The major advantages of ”killed” over ”live attenuated” viral vaccines include
    Back

    Vaccine can be given to immunodeficient patients
17. Front

    Which type of hypersensitivity reaction is represented by atopic dermatitis?
    Back

    Immediate type – IgE dependent
18. Front

    Which of the following cytokines can mediated release of acute phase proteins from the liver:
    Back

    IL-1 and IL-6
19. Front

    Humoral response to T-dependent antigens is characterized by:
    Back

    Induction of antigen specific B cells and CD4+ T cells
20. Front

    Radial immunodiffusion may be used for:
    Back

    Quantitative measurement of antigen or antibody
21. Front

    Which molecules do not participate in acute inflammation:
    Back

    Antibodies
22. Front

    Which method is the most accurate to diagnose presence of incomplete IgG anti-D (Rh) in human serum?
    Back

    Indirect Coombs test
23. Front

    Secretory IgA protects external mucosal surface by
    Back

    Preventing microbial adherence to mucosa
24. Front

    B-lymphocytes mature in the human body in the
    Back

    Bone marrow