Microbiology Exam Review Quiz Dec 2012

131 Questions | By J1_black | Last updated: Mar 21, 2022 | Total Attempts: 78

Questions

Settings

Create your own Quiz

Microbiology Exam Review Quiz Dec 2012 - Quiz

Questions and Answers

1.

Which type of microscopy is most commonly used in the direct microscopic examination of T.pallidum?
- A.
  
  Brightfield Microscopy
- B.
  
  Darkfield Microscopy
- C.
  
  Phase Contrast Microscopy
- D.
  
  Fluorescence Microscopy
- E.
  
  Electron Microscopy
2.

The spirochetes are gram negative microorganisms.
- A.
  
  True
- B.
  
  False
3.

What media is used to culture T.pallidum?
4.

What is the purpose of the axial filaments of spirochetes such as Treponema pallidum and Borrelia spp.?
5.

T.pallidum has a _________________ motility that can be used for laboratory diagnosis.
6.

Identification of the causative agent of syphilis is most commonly achieved using:
- A.
  
  Culture
- B.
  
  Biochemical testing
- C.
  
  Antigen detection
- D.
  
  Serology
- E.
  
  PCR
7.

The screening test used in the diagnosis of secondary and tertiary syphilis attempts to detect antibodies to ________________ whereas the specific test attempts to detect antibodies to ___________________.
8.

Borrelia burgdorferi is the etiologic agent of ____________________.
9.

The transmission of B.Burgdorferi is mediated by:
- A.
  
  Aerosols
- B.
  
  Direct contact
- C.
  
  Vectors
- D.
  
  Fomites
- E.
  
  Vehicles
10.

What organs are most commonly affected during the progression of Lyme Disease?
- A.
  
  Skin
- B.
  
  Blood vessles
- C.
  
  Brain
- D.
  
  Heart
- E.
  
  Joints
- F.
  
  Pancreas
- G.
  
  Stomach
- H.
  
  Appendix
11.

The laboratory diagnosis of Lyme Disease is most commonly made using _____________.
12.

Name two species of Borrelia that are most commonly implicated in cases of relapsing fever. What are the vectors involved in the transmission of these species of Borrelia?
13.

What organs are most commonly affected during severe cases of Leptospirosis?
- A.
  
  Kidneys
- B.
  
  Heart
- C.
  
  Liver
- D.
  
  Central Nervous System
- E.
  
  Lungs
- F.
  
  Skin
14.

The transmission of leptospires is most commonly via _________________________
15.

Identification of the causative agent of leptospirosis is most commonly achieved using:
- A.
  
  PCR
- B.
  
  Biochemical testing
- C.
  
  Culture
- D.
  
  Serology
- E.
  
  Antigen detection
16.

Ticks transmit the spirochetes that cause Lyme disease within the first hour after attaching to their human host.
- A.
  
  True
- B.
  
  False
17.

Spirochetes are differentiated by the number of insertion disks present.
- A.
  
  True
- B.
  
  False
18.

Several treponeme species are considered to be normal oral and genital flora.
- A.
  
  True
- B.
  
  False
19.

A positive ELISA test for Lyme disease should be confirmed by Western blot.
- A.
  
  True
- B.
  
  False
20.

Diagnosis of leptospirosis is usually made by detection of IgM antibodies in acute and convalescent sera.
- A.
  
  True
- B.
  
  False
21.

Treponemes can infect the umbilical cord and cross the placenta.
- A.
  
  True
- B.
  
  False
22.

Reaginic antibodies are produced against antigens of T.pallidum.
- A.
  
  True
- B.
  
  False
23.

Extreme water sports are a risk factor for leptospirosis.
- A.
  
  True
- B.
  
  False
24.

Human relapsing fever is caused by the bite of the human body louse.
- A.
  
  True
- B.
  
  False
25.

Susceptibility testing of Borrelia spp. to doxycycline should always be done because of the incidence of treatment failure.
- A.
  
  True
- B.
  
  False