Mycoplasma And Ureaplasma

18 Questions | By Darkrain9000 | Updated: Jan 18, 2023 | Attempts: 1004

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1.

Mycoplasmas are pleomorphic organisms that have a cell wall.
- A.
  
  True
- B.
  
  False
2.

Why are Mycoplasma resistant to antibiotics such as penicillin and cephalosporins?
- A.
  
  Their endotoxins makes them resistant
- B.
  
  Their lack of a cell wall make them resistant
- C.
  
  Their motility makes them resistant
3.

Mycoplasma grows _____ and are highly fastidious, facultative anerobes.
- A.
  
  Rapidly
- B.
  
  Slowly
4.

Mycoplasma need complex media contain _______ and _______ for growth.
- A.
  
  Blood and hemolysin
- B.
  
  Glucose and galactose
- C.
  
  Cholesterol and fatty acids
5.

Mycoplasma species grow embedded _____ the surface of the solid media.
- A.
  
  Over
- B.
  
  Beneath
6.

On solid media, some species of Mycoplasma form colonies with a slightly raised center giving a "_______" appearance.
- A.
  
  Clown
- B.
  
  Valley-like
- C.
  
  Fried egg
- D.
  
  Wrinkled
7.

M. hominis is found in the lower genitourinary tract of about half of healthy adults; not a cause of __________.
- A.
  
  PKU
- B.
  
  REG
- C.
  
  NGU
8.

Since mycoplasma organisms lack a ______, they will not stain with Gram stain.
- A.
  
  Vacuole
- B.
  
  Granules
- C.
  
  Cytoplasm
- D.
  
  Cell wall
9.

A DNA fluorescent stain using (acridine ________) can be used but this is not specific.
- A.
  
  Red
- B.
  
  Blue
- C.
  
  Orange
- D.
  
  White
10.

M. penumoniae requires what substrate to grow in culture?
- A.
  
  Glucose
- B.
  
  Arginine
- C.
  
  Urea and media with a pH near 6.0
11.

Mycoplasma hominis requires what substrate to grow in culture?
- A.
  
  Glucose
- B.
  
  Arginine
- C.
  
  Urea and media with a pH near 6.0
12.

Ureaplasma species requires what substrate to grow in culture?
- A.
  
  Glucose
- B.
  
  Arginine
- C.
  
  Urea and media with a pH near 6.0
13.

What is the major way M. pneumoniae is diagnosed?
- A.
  
  PCR
- B.
  
  Serology
14.

What would be the best way to make a diagnosis of Mycoplasma pneumoniae?
- A.
  
  Collect two specimens 2-3 weeks apart
- B.
  
  Collect one specimens 1 week apart
- C.
  
  Collected three specimens 2-3 weeks apart
- D.
  
  Collect two specimens 7 days apart
15.

Cold agglutininins is a sensitive and specific for Mycoplasma pneumoniae.
- A.
  
  True
- B.
  
  False
16.

Most reference labs utilize the ______ fixation technique for the presence of antibodies.
- A.
  
  Immuno-fluorescence
- B.
  
  Radio-isotope
- C.
  
  Complement
17.

Due to the absence of a cell wall, Mycoplasma organisms are resistant to all Beta lactam antibiotics.
- A.
  
  True
- B.
  
  False
18.

Mycoplasma pneumoniae remain susceptible to _______, newer quinolones and macrolides are used.
- A.
  
  Tetracycline
- B.
  
  Penicillin
- C.
  
  Beta lactam