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Brock Biology of Microorganisms Chapter 27 Exam Questions With Correct Answers
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Brock Biology of Microorganisms Chapter 27 Exam Questions With Correct Answers Laboratories that work with moderate risk pathogens are classified as - answerBSL-2 Bacteremia is a term used - answerto indicate the presence of bacteria in the blood. Which of the following must be accomplished FIR...

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  • October 18, 2024
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©SIRJOEL EXAM SOLUTIONS
10/3/2024 9:54 PM


Brock Biology of Microorganisms Chapter 27
Exam Questions With Correct Answers


Laboratories that work with moderate risk pathogens are classified as - answer✔BSL-2

Bacteremia is a term used - answer✔to indicate the presence of bacteria in the blood.
Which of the following must be accomplished FIRST in order to conduct RT-PCR? -
answer✔Complementary DNA must be synthesized from RNA

The most common of all nosocomial infections are ________ infections - answer✔urinary tract

MacConkey agar and eosin-methylene blue (EMB) agar are ________ media. - answer✔both
selective and differential

An Etest® is a clinical tool used for the determination of - answer✔the minimum inhibitory
concentration (MIC) value of an antimicrobial agent.

The component that enriches chocolate agar is - answer✔heat-lysed blood cells

Modified Thayer-Martin (MTM) agar - answer✔incorporates antibiotics into the medium
The oxygen-free gas commonly employed during anoxic incubation of a bacterial culture is a
mixture of - answer✔nitrogen and carbon dioxide

Which type of medium typically contains an indicator dye? - answer✔differential but not
selective
Some antibiotics inhibit protein synthesis by disruption of translation through interactions with
the - answer✔ribosome

The disk-diffusion test is used for - answer✔assessing antimicrobial activity.
Which of the following immunological tests would allow the specific identification of a
microorganism directly in a patient specimen? - answer✔fluorescent antibody (FA)

EMB agar preferentially selects for the growth of ________ bacteria - answer✔gram-negative

, ©SIRJOEL EXAM SOLUTIONS
10/3/2024 9:54 PM

Latex bead agglutination tests are - answer✔rapid and reliable tests used for the detection of
certain bacteria as well as certain serum antibodies

The first antibiotic to be characterized was a - answer✔β-lactam
One advantage of the fluorescent antibodies that permits disease diagnosis long before primary
isolation techniques yield results is that - answer✔it may be applied directly to tissue

Which of the following is a mechanism of aminoglycosides? - answer✔targeting the 30S
ribosomal subunit

Which of the following would be useful for treating Candida? - answer✔an azole
The blotting of proteins from polyacrylamide gels to nitrocellulose paper, and the subsequent
identification by specific antibodies, is called a(n) ________ blot. - answer✔Western

Widespread antimicrobial drug resistance is usually passed by - answer✔horizontal gene transfer

Most drug-resistant bacteria isolated from patients contain a(n) - answer✔R plasmid

Antibody titer can be measured by - answer✔agglutination.

Compared with other precipitation tests, agglutination tests are - answer✔more sensitive

Blood agar is an example of a(n) ________ medium - answer✔general-purpose
Common contaminants in blood drawn from a vein include all EXCEPT which of the following?
- answer✔Escherichia coli
Intestinal parasites can be identified by observing stool samples for the presence of -
answer✔cysts

Chocolate agar is an example of a ________ medium - answer✔nonselective enriched
A laboratory in which Ebola virus is studied would be classified as a BSL-________ laboratory -
answer✔4
The tuberculin skin test looks to identify ________ specific to Mycobacterium tuberculosis. -
answer✔delayed hypersensitive (DTH) TH1 cells
Which of the following is a cause of drug-specific resistance in disease-causing organisms? -
answer✔indiscriminate nonmedical use of antimicrobials

Which of the following is a novel antimicrobial target? - answer✔disruption of lipid biosynthesis

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