Medical Microbiology 6th edition by Murray Patrick R. Rosenthal Ken S. Pfaller test bank

Medical Microbiology  6th edition by Murray Patrick R. Rosenthal Ken S. Pfaller  test bank
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Murray: Medical Microbiology, 6th Edition

Chapter 11: Cellular Immune Responses

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MULTIPLE CHOICE

1. A 5-year-old boy has frequent upper respiratory infections. Which of the following deficiencies would be consistent with this boys problem?
a. CD4 T cells
b. Complement C8
c. IgA
d. IgG
e. Lysozyme

ANS: C

2. A defect in the C3 component of complement would affect which of the pathways?
a. Alternate
b. A lectin
c. Classical
d. C lectin and classical
e. Alternate, lectin, and classical

ANS: E

3. Which of the following antibody isotypes would still be found in serum of a 2-year-old boy born without a thymus?
a. IgA
b. IgD
c. IgE
d. IgG
e. IgM

ANS: E

4. Which of the following steps in antibody gene development occurs outside the bone marrow?
a. Juxtaposition of V4 to D2
b. Juxtaposition of V4D2 to J1
c. Juxtaposition of V4D2J1 to C
d. Juxtaposition of V4D2J1Cmu to C
e. Juxtaposition of V4D2J1 to C
ANS: E

5. Which of the antibody isotypes remains primarily in serum?
a. IgA
b. IgD
c. IgE
d. IgG
e. IgM

ANS: E

6. Which of the antibody isotypes is in lowest concentration in serum?
a. IgA
b. IgD
c. IgE
d. IgG
e. IgM

ANS: B

7. Which of the antibody isotypes is almost always cell associated?
a. IgA
b. IgD
c. IgE
d. IgG
e. IgM

ANS: C

8. Which of the following describes a property of the variable region after cleavage of IgG with papain?
a. Opsonization of bacteria
b. Activation of complement
c. Agglutination of antigen
d. Neutralization of toxin
e. Crossing the placenta

ANS: D

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