Page 242 - Review of Medical Microbiology and Immunology ( PDFDrive )
P. 242
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mebooksfree.com mebooksfree.com mebooksfree.com ANSWERS CHAPTER 28 Structure 231 mebooksfree.com
SELF-ASSESSMENT QUESTIONS
1. (A)
1. The proteins on the external surface of viruses serve several
2. (C)
important functions. Regarding these proteins, which one of the
3. (E)
following statements is most accurate?
(A) They are the antigens against which neutralizing antibodies are
formed.
(B) They are the polymerases that synthesize viral messenger RNA.
COURSE EXAMINATIONS
(C) They are the proteases that degrade cellular proteins leading to
cell death. PRACTICE QUESTIONS: USMLE &
Questions on the topics discussed in this chapter can be found
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(D) They are the proteins that regulate viral transcription.
in the Basic Virology section of Part XIII: USMLE (National
(E) Change in conformation of these proteins can result in prion-
Board) Practice Questions starting on page 720. Also see Part XIV:
mediated diseases such as Creutzfeldt-Jakob disease.
2. If a virus has an envelope, it is more easily inactivated by lipid
solvents and detergents than viruses that do not have an envelope.
page 751.
Which one of the following viruses is the most sensitive to inacti-
vation by lipid solvents and detergents?
(A) Coxsackie virus
(B) Hepatitis A virus
(C) Herpes simplex virus
(D) Poliovirus
(E) Rotavirus
3. Regarding the tegument, which one of the following is most
accurate?
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(A) It uncoats the virion within the phagocytic vesicle.
(B) It mediates the binding of the virion to the cell surface.
(C) It guides the viral core from the cytoplasm to the nucleus.
(D) It is the site at which new virions bud from the surface of the
infected cell.
(E) It is the location of proteins in the virion that act as viral tran-
scription factors.
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