Multiple Choice
The gram-negative bacillus that can be described as oxidase-negative, nitrate-positive, indole-negative, citrate-positive, methyl red-positive, urease-negative, H₂S-positive is
A) Klebsiella pneumoniae.
B) Proteus vulgaris.
C) Salmonella enteritidis.
D) Escherichia coli.
E) Shigella sonnei.
Correct Answer:

Verified
Correct Answer:
Verified
Q1: The gram-negative bacillus that can be described
Q2: Alkaline slant, acid butt, no H₂S<br>A)Salmonella species<br>B)Escherichia
Q3: MacConkey-sorbitol agar is useful for detecting pathogenic
Q5: The swarming gram-negative bacillus that can be
Q6: The swarming gram-negative bacillus that can be
Q7: The serotype O157:H7 of which of the
Q8: Indole production, methyl red, Voges-Proskauer, citrate, urease,
Q9: Most strains of Escherichia coli can be
Q10: The major etiologic agent of urinary tract
Q11: Enterotoxigenic and enteroinvasive are terms often linked