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Enterobacteriaceae

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

All members of Enterobacteriaceae reduce nitrates to nitrites except:

a)

Erwinia

b)

Pantoea agglomerans

c)

Xenorhabdus

d)

All of these

2.

All members of the family Enterobacteriaceae are motile except:

a)

Klebsiella

b)

Yersinia

c)

Shigella

d)

All of these

3.

All of the following are primary culture media used in the presumptive identification of enteric organisms in the laboratory, except:

a)

EMB

b)

MAC

c)

XLD

d)

None of these

4.

It is otherwise known as the "H antigen".

a)

Flagellar antigen

b)

Somatic antigen

c)

Capsular antigen

d)

Envelope antigen

5.

This organism is also known as the "Colon bacillus".

a)

E. coli

b)

S. typhi

c)

K. pneumoniae

d)

None of these

6.

It is the causative agent of “MUNTEZUMA’S REVENGE”.

a)

ETEC

b)

EHEC

c)

EPEC

d)

EAEC

7.

Which species of Klebsiella does not produce indole?

a)

K. oyxtoca

b)

K. rhinoscleromatis

c)

K. ozaenae

d)

None of these

8.

It is known as the "Friedlander’s bacillus".

a)

K. pneumoniae

b)

K. oxytoca

c)

K. ozaenae

d)

None of these

9.

Formerly known as "Donovania granulomatis"

a)

Klebsiella granulomatis

b)

Calymmatobacterium granulomatis

c)

Either

d)

Neither

10.

Causative agent of "Rhinoscleroma".

a)

Klebsiella rhinoscleromatis

b)

Klebsiella ozaenae

c)

Klebsiella oxytoca

d)

Klebsiella pneumoniae

11.

Causative agent of chronic atrophic rhinitis.

a)

K. ozaenae

b)

K. pneumoniae

c)

K. oxytoca

d)

K. rhinoscleromatis

12.

This organism has “fish eye” colonies on EMB.

a)

E. coli

b)

Klebsiella spp.

c)

Shigella spp.

d)

Enterobacter spp.

13.

This organism gained notoriety with a nationwide (U.S) outbreak of septicemia resulting from contaminated IV fluids.

a)

Pantoea agglomerans

b)

Cronobacter sakazakii

c)

Enterobacter gergoviae

d)

None of these

14.

It is found in respiratory samples and is rarely isolated from blood cultures.

a)

Pantoea agglomerans

b)

Cronobacter sakazakii

c)

Enterobacter gergoviae

d)

None of these

15.

It produces a yellow pigment and has been documented as a pathogen in neonates causing meningitis and bacteremia often coming from powdered infant formula.

a)

Enterobacter gergoviae

b)

Cronobacter sakazakii

c)

Pantoea agglomerans

16.

All of the following organisms are able to produce pigment at room temperature, except:

a)

Serratia marcescens

b)

Serratia rubidea

c)

Serratia plymuthica

d)

Serratia liquifaciens

17.

It is the most clinically significant species of Serratia.

a)

Serratia marcescens

b)

Serratia plymuthica

c)

Serratia liquifaciens

d)

Serratia odorifera

18.

This is the major characteristic of Hafnia.

a)

Delayed positive citrate reaction

b)

Delayed positive urease reaction

c)

Delayed positive indole reaction

d)

Delayed positive methyl red reaction

19.

It is easily identified by their swarming colonies on culture media.

a)

Proteus mirabilis

b)

Proteus vulgaris

c)

Either

d)

Neither

20.

It is the only urease positive species of Providencia.

a)

Providencia alcalifaciens

b)

Providencia heimbachae

c)

Providencia rettgeri

d)

Providencia stuartii