Brock Biology of Microorganisms Chapter 27 Exam Questions With Correct Answers
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Brock Biology of Microorganisms
Institution
Brock Biology Of Microorganisms
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...
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
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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