Antigens And B Cells

9 Questions | Total Attempts: 315

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Cell Quizzes & Trivia

The B cells produce antibodies that are used to attack invading bacteria, viruses, and toxins. B cells can recognize soluble antigen for which their B cell receptor is specific. They can then process the antigen and present peptides using MHC class II molecules. See what more you know about them by taking this quiz.


Questions and Answers
  • 1. 
    Antibodies have the following properties:
    • A. 

      Are glycoproteins

    • B. 

      Composed to two heavy chains and two light chains

    • C. 

      Can be cleaved into different fragments using papain and pepsin

    • D. 

      B and C only

    • E. 

      A, B, and C

  • 2. 
    There are _____________ isotypes or classes of antibodies.
  • 3. 
    There are __________ isotypes of light chain.
  • 4. 
    True or False: Immunoglobulin genes are expressed in germline configuration.
    • A. 

      True

    • B. 

      False

  • 5. 
    Enzymes involved in somatic recombination are:
    • A. 

      Rh1 and Rh2

    • B. 

      Rag-1 and Rag-2

    • C. 

      Papain and pepsin

    • D. 

      CD4 and CD8

    • E. 

      Kappa and lambda

  • 6. 
    The first immunoglobulins that a B cell expresses are:
    • A. 

      IgG and IgM

    • B. 

      IgM and IgA

    • C. 

      IgM and IgD

    • D. 

      IgG and IgD

    • E. 

      IgE and IgA

  • 7. 
    A naive B cell:
    • A. 

      Has not yet encountered antigen

    • B. 

      Only produces IgM and IgD

    • C. 

      Can express multiple light chains

    • D. 

      A and B only

    • E. 

      B and C only

  • 8. 
    Somatic hypermutation
    • A. 

      Happens after a B cell has encountered antigen

    • B. 

      Is part of affinity maturation

    • C. 

      Involves a high rate of mutation to produce many different antibodies

    • D. 

      Involves CDR1 and CDR2

    • E. 

      All of the above

  • 9. 
    The transient presence of this antibody can be helpful in diagnosing recent infections
    • A. 

      IgG

    • B. 

      IgA

    • C. 

      IgE

    • D. 

      IgD

    • E. 

      IgM