Micro exam 4 JSCC Questions With Complete Solutions
__________ is a member of the Enterobacteriaceae that
produces DNase, lipase, gelatinase, and sometimes a red
pigment. Correct Answers Serratia marcescens
__________ is the only oxidase positive member of the
Enterobacteriaceae.
A. Klebsiella
B. Pseudomonas
C. Yersinia
D. Plesiomonas Correct Answers D. Plesiomonas
__________ media is used to isolate Yersinia enterocolitica.
Correct Answers Cefsulodin-irgasan-novobiocin
______causes plague, which is transmitted through fleas and
rodents. Correct Answers Yersinia pestis
A case of cellulitis in a fisherman produced large, opaque, beta
hemolytic colonies on sheep blood agar. The organism also grew
on MacConkey agar, but failed to grow in 6.5% NaCl. This
gram-negative bacillus was oxidase positive, indole positive,
and fermented and produced gas from glucose. Of the following
choices, which organism is most likely described?
A. Aeromonas caviae complex
B. Vibrio parahaemolyticus
C. Alcaligenes faecalis
D. Aeromonas hydrophilia complex Correct Answers D.
Aeromonas hydrophilia complex
,A gram negative nonfermentative gram negative bacillus which
had the odor of over ripened grapes, a green pigment, and was
ADH +, LDC -, and ODC+. is most likely:
A. Stenotrophomonas maltophilia
B. Burkholderia cepacia
C. Pseudomonas aeruginosa
D. Proteus vulgaris Correct Answers C. Pseudomonas
aeruginosa
A surgical wound specimen produces pink colonies on
MacConkey agar. There is no growth on CNA and abundant flat,
spreading gray mucoid colonies on blood agar. This specimen
contains:
A. a Gram negative bacillus that cannot ferment lactose
B. both Gram positive and Gram negative bacteria
C. a Gram negative bacillus that ferments lactose
D. a Gram negative bacillus that produces H2S Correct
Answers C. a Gram negative bacillus that ferments lactose
A TSI is yellow over yellow with cracks but no blackening. This
would be interpreted as:
A. ferments glucose with gas production, but not lactose or
sucrose
B. ferments glucose with gas production, ferments lactose and/or
sucrose
C. ferments glucose with gas production, ferments lactose and/or
sucrose with production of H2S
D. unable to ferment glucose, lactose or sucrose. Correct
Answers B. ferments glucose with gas production, ferments
lactose and/or sucrose
, A. Hydrophilia is the most commonly isolated species and it
causes
A. Cholera
B. Food poisoning
C. GI disease
D. Wound infections Correct Answers C
Aeromonas is found in various animals
True or False Correct Answers False
All of the following are growth requirements of Campylobacter
species except
A. thermophillic
B. requires 10% nitrogen, 5% oxygen, 85% carbon dioxide
C. Campy bacteria is selective
D. All are growth requirments Correct Answers D
All of the following are true of Salmonella except
A. lactose neg
B. H2S neg
C. green colonies on Hektoen
D. Two SPP: bongori/enterica Correct Answers B
All of the following are true of shigella except
A. lactose neg
B. nonmotile
C. green colonies on Hektoen
D. H2S+ Correct Answers D
All of the following are true of Yersinia species except
A. large GNR
__________ is a member of the Enterobacteriaceae that
produces DNase, lipase, gelatinase, and sometimes a red
pigment. Correct Answers Serratia marcescens
__________ is the only oxidase positive member of the
Enterobacteriaceae.
A. Klebsiella
B. Pseudomonas
C. Yersinia
D. Plesiomonas Correct Answers D. Plesiomonas
__________ media is used to isolate Yersinia enterocolitica.
Correct Answers Cefsulodin-irgasan-novobiocin
______causes plague, which is transmitted through fleas and
rodents. Correct Answers Yersinia pestis
A case of cellulitis in a fisherman produced large, opaque, beta
hemolytic colonies on sheep blood agar. The organism also grew
on MacConkey agar, but failed to grow in 6.5% NaCl. This
gram-negative bacillus was oxidase positive, indole positive,
and fermented and produced gas from glucose. Of the following
choices, which organism is most likely described?
A. Aeromonas caviae complex
B. Vibrio parahaemolyticus
C. Alcaligenes faecalis
D. Aeromonas hydrophilia complex Correct Answers D.
Aeromonas hydrophilia complex
,A gram negative nonfermentative gram negative bacillus which
had the odor of over ripened grapes, a green pigment, and was
ADH +, LDC -, and ODC+. is most likely:
A. Stenotrophomonas maltophilia
B. Burkholderia cepacia
C. Pseudomonas aeruginosa
D. Proteus vulgaris Correct Answers C. Pseudomonas
aeruginosa
A surgical wound specimen produces pink colonies on
MacConkey agar. There is no growth on CNA and abundant flat,
spreading gray mucoid colonies on blood agar. This specimen
contains:
A. a Gram negative bacillus that cannot ferment lactose
B. both Gram positive and Gram negative bacteria
C. a Gram negative bacillus that ferments lactose
D. a Gram negative bacillus that produces H2S Correct
Answers C. a Gram negative bacillus that ferments lactose
A TSI is yellow over yellow with cracks but no blackening. This
would be interpreted as:
A. ferments glucose with gas production, but not lactose or
sucrose
B. ferments glucose with gas production, ferments lactose and/or
sucrose
C. ferments glucose with gas production, ferments lactose and/or
sucrose with production of H2S
D. unable to ferment glucose, lactose or sucrose. Correct
Answers B. ferments glucose with gas production, ferments
lactose and/or sucrose
, A. Hydrophilia is the most commonly isolated species and it
causes
A. Cholera
B. Food poisoning
C. GI disease
D. Wound infections Correct Answers C
Aeromonas is found in various animals
True or False Correct Answers False
All of the following are growth requirements of Campylobacter
species except
A. thermophillic
B. requires 10% nitrogen, 5% oxygen, 85% carbon dioxide
C. Campy bacteria is selective
D. All are growth requirments Correct Answers D
All of the following are true of Salmonella except
A. lactose neg
B. H2S neg
C. green colonies on Hektoen
D. Two SPP: bongori/enterica Correct Answers B
All of the following are true of shigella except
A. lactose neg
B. nonmotile
C. green colonies on Hektoen
D. H2S+ Correct Answers D
All of the following are true of Yersinia species except
A. large GNR
