BACTERIOLOGY COMPRE Exam
Questions and Answers 100% Solved
All of the following sites contain normal flora except:
a. Cerebrospinal fluid
b. Colon
c. Oral cavity
d. Skin - ✔✔a. Cerebrospinal fluid
Gram-negative bacteria contain these which are not found in gram-positive
bacteria
a. Capsule
b. Cross-linked peptidoglycan
c. Periplasmic space and outer membrane
d. Teichoic acids - ✔✔c. Periplasmic space and outer membrane
Which structure is important for motility of the bacterial cell:
a. Capsule
b. Flagella
c. Lipopolysaccharide
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,d. Pili - ✔✔b. Flagella
Which germicide is intended to destroy all microorganisms and their spores
on inanimate surfaces:
a. Antibiotic
b. Antiseptic
c. Disinfectant
d. Sterilizer - ✔✔d. Sterilizer
Selection and differentiation media for Vibrio:
a. Tetrathionate broth
b. Thioglycollate broth
c. Thiosulfate-citrate-bile salts-sucrose agar
d. Trypticase soy agar - ✔✔c. Thiosulfate-citrate-bile salts-sucrose agar
Which is NOT a primary isolation medium for Mycobacterium:
a. Lowenstein-Jensen medium
b. Martin-Lewis medium
c. Middlebrook medium
d. Petragnani's medium - ✔✔b. Martin-Lewis medium
Bacterial control growing as purple colonies in eosin-methylene blue agar:
a. E. coli
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, b. K. pneumoniae
c. P. vulgaris
d. S. pyogenes - ✔✔b. K. pneumoniae
The specimen of choice for bacterial culture of urine:
a. Clean-catch midstream
b. Catheterized sample
c. Suprapubic aspiration
d. Routine void - ✔✔a. Clean-catch midstream
A throat swab was submitted for anaerobic culture. This specimen would
be:
a. Inoculated into thioglycollate broth
b. Rejected
c. Sent to a reference laboratory
d. Set up immediately - ✔✔b. Rejected
The optimal time to collect blood culture is:
a. Shortly before the fever spikes
b. During the height of fever
c. Shortly after the fever spikes
d. During afebrile episodes - ✔✔b. During the height of fever
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Questions and Answers 100% Solved
All of the following sites contain normal flora except:
a. Cerebrospinal fluid
b. Colon
c. Oral cavity
d. Skin - ✔✔a. Cerebrospinal fluid
Gram-negative bacteria contain these which are not found in gram-positive
bacteria
a. Capsule
b. Cross-linked peptidoglycan
c. Periplasmic space and outer membrane
d. Teichoic acids - ✔✔c. Periplasmic space and outer membrane
Which structure is important for motility of the bacterial cell:
a. Capsule
b. Flagella
c. Lipopolysaccharide
1
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
,d. Pili - ✔✔b. Flagella
Which germicide is intended to destroy all microorganisms and their spores
on inanimate surfaces:
a. Antibiotic
b. Antiseptic
c. Disinfectant
d. Sterilizer - ✔✔d. Sterilizer
Selection and differentiation media for Vibrio:
a. Tetrathionate broth
b. Thioglycollate broth
c. Thiosulfate-citrate-bile salts-sucrose agar
d. Trypticase soy agar - ✔✔c. Thiosulfate-citrate-bile salts-sucrose agar
Which is NOT a primary isolation medium for Mycobacterium:
a. Lowenstein-Jensen medium
b. Martin-Lewis medium
c. Middlebrook medium
d. Petragnani's medium - ✔✔b. Martin-Lewis medium
Bacterial control growing as purple colonies in eosin-methylene blue agar:
a. E. coli
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, b. K. pneumoniae
c. P. vulgaris
d. S. pyogenes - ✔✔b. K. pneumoniae
The specimen of choice for bacterial culture of urine:
a. Clean-catch midstream
b. Catheterized sample
c. Suprapubic aspiration
d. Routine void - ✔✔a. Clean-catch midstream
A throat swab was submitted for anaerobic culture. This specimen would
be:
a. Inoculated into thioglycollate broth
b. Rejected
c. Sent to a reference laboratory
d. Set up immediately - ✔✔b. Rejected
The optimal time to collect blood culture is:
a. Shortly before the fever spikes
b. During the height of fever
c. Shortly after the fever spikes
d. During afebrile episodes - ✔✔b. During the height of fever
3
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
