Question 1

An important intestinal pathogen generally acquired from contaminated food or water is

Accepted Answer

A) Clostridium perfringens. 
B) Mycobacterium tuberculosis. 
C) Ebola virus. 
D) Escherichia coli O157:H7. 
A) Clostridium perfringens. 
B) Mycobacterium tuberculosis. 
C) Ebola virus. 
D) Escherichia coli O157:H7. D

Question 2

Indirect EIA is used to detect

Accepted Answer

A) antigens. 
B) antibodies. 
C) viruses. 
D) serum. 
A) antigens. 
B) antibodies. 
C) viruses. 
D) serum. B

Question 3

Some infectious agents,such as Neisseria gonorrhoeae,do NOT elicit a systemic immune response.

Accepted Answer

A) True 
 B)False  True

Question 4

Which bacterium shows a characteristic green sheen when grown on eosin-methylene blue (EMB)agar?

Accepted Answer

A) Escherichia coli 
B) Salmonella enterica 
C) Staphylococcus aureus 
D) Streptococcus pyogenes 
A) Escherichia coli 
B) Salmonella enterica 
C) Staphylococcus aureus 
D) Streptococcus pyogenes

Question 5

Describe the use of combination drugs and why they are effective.Provide examples.

Accepted Answer

The efficacy of some antibiotics can be

Question 6

ALL positive HIV-EIA tests must be confirmed by another independent test,usually the HIV Western blot.

Accepted Answer

A) True 
 B)False

Question 7

Nucleic acid probes are NOT suitable for the detection of viruses.

Accepted Answer

A) True 
 B)False

Question 8

A mechanism for penicillin resistance in bacteria is

Accepted Answer

A) acetylation of the antibiotic. 
B) phosphorylation of the antibiotic. 
C) confirmation change of the antibiotic. 
D) splitting the β-lactam ring of the antibiotic. 
A) acetylation of the antibiotic. 
B) phosphorylation of the antibiotic. 
C) confirmation change of the antibiotic. 
D) splitting the β-lactam ring of the antibiotic.

Question 9

The first antibiotic to be characterized was a

Accepted Answer

A) cephalosporin. 
B) quinolone. 
C) β-lactam. 
D) macrolide. 
A) cephalosporin. 
B) quinolone. 
C) β-lactam. 
D) macrolide.

Question 10

Which of the following is a novel antimicrobial target?

Accepted Answer

A) disruption of lipid biosynthesis 
B) inhibition of protein synthesis 
C) inhibition of cell wall biosynthesis 
D) inhibition of peptidoglycan crosslinking 
A) disruption of lipid biosynthesis 
B) inhibition of protein synthesis 
C) inhibition of cell wall biosynthesis 
D) inhibition of peptidoglycan crosslinking

Question 11

The blotting of proteins from polyacrylamide gels to nitrocellulose paper,and the subsequent identification by specific antibodies,is called a(n)________ blot.

Accepted Answer

A) Western 
B) Eastern 
C) Southern 
D) Northern 
A) Western 
B) Eastern 
C) Southern 
D) Northern

Question 12

Discuss antimicrobial susceptibility testing and the use of minimal inhibitory concentration (MIC)values.

Accepted Answer

Antimicrobial susceptibility is measured

Question 13

Laboratories that work with moderate risk pathogens are classified as

Accepted Answer

A) BSL-1. 
B) BSL-2. 
C) BSL-3. 
D) BSL-4. 
A) BSL-1. 
B) BSL-2. 
C) BSL-3. 
D) BSL-4.

Question 14

Which of the following immunological tests would allow the specific identification of a microorganism directly in a patient specimen?

Accepted Answer

A) fluorescent antibody (F
A)  
B) radioimmunoassay (RI
A)  
C) enzyme-linked immunosorbent assay (EI
A)  
D) agglutination 
A) fluorescent antibody (F
A)  
B) radioimmunoassay (RI
A)  
C) enzyme-linked immunosorbent assay (EI
A)  
D) agglutination

Question 15

MacConkey agar and eosin-methylene blue (EMB)agar are ________ media.

Accepted Answer

A) selective but not differential 
B) differential but not selective 
C) both selective and differential 
D) neither selective nor differential 
A) selective but not differential 
B) differential but not selective 
C) both selective and differential 
D) neither selective nor differential

Question 16

Finding no bacterial growth,despite persistent urinary tract symptoms,indicates that the problem is likely either non-pathogenically physiological or psychosomatic.

Accepted Answer

A) True 
 B)False

Question 17

The disk-diffusion test is used for

Accepted Answer

A) assessing antimicrobial activity. 
B) the identification of Escherichia coli. 
C) the identification of viral plaques. 
D) the detection of antigen. 
A) assessing antimicrobial activity. 
B) the identification of Escherichia coli. 
C) the identification of viral plaques. 
D) the detection of antigen.

Question 18

The most common of all nosocomial infections are ________ infections.

Accepted Answer

A) blood 
B) reproductive tract 
C) urinary tract 
D) respiratory tract 
A) blood 
B) reproductive tract 
C) urinary tract 
D) respiratory tract

Question 19

The causal agents of urinary tract diseases are often members of the normal flora.

Accepted Answer

A) True 
 B)False

Question 20

Chitin is found ONLY in fungi and insects.

Accepted Answer

A) True 
 B)False

Exam 27: Diagnostic Microbiology

An important intestinal pathogen generally acquired from contaminated food or water is

Indirect EIA is used to detect

Some infectious agents,such as Neisseria gonorrhoeae,do NOT elicit a systemic immune response.

Which bacterium shows a characteristic green sheen when grown on eosin-methylene blue (EMB)agar?

Describe the use of combination drugs and why they are effective.Provide examples.

ALL positive HIV-EIA tests must be confirmed by another independent test,usually the HIV Western blot.

Nucleic acid probes are NOT suitable for the detection of viruses.

A mechanism for penicillin resistance in bacteria is

The first antibiotic to be characterized was a

Which of the following is a novel antimicrobial target?

The blotting of proteins from polyacrylamide gels to nitrocellulose paper,and the subsequent identification by specific antibodies,is called a(n)________ blot.

Discuss antimicrobial susceptibility testing and the use of minimal inhibitory concentration (MIC)values.

Laboratories that work with moderate risk pathogens are classified as

Which of the following immunological tests would allow the specific identification of a microorganism directly in a patient specimen?

MacConkey agar and eosin-methylene blue (EMB)agar are ________ media.

Finding no bacterial growth,despite persistent urinary tract symptoms,indicates that the problem is likely either non-pathogenically physiological or psychosomatic.

The disk-diffusion test is used for

The most common of all nosocomial infections are ________ infections.

The causal agents of urinary tract diseases are often members of the normal flora.

Chitin is found ONLY in fungi and insects.

Microorganisms and Microbiology

Microbial Cell Structure and Function

Microbial Metabolism

Molecular Biology

Microbial Growth and Control

Microbial Genomics

Metabolic Regulation

Viruses and Virology

Viral Genomes and Diversity

Genetics of Bacteria and Archaea

Genetic Engineering and Biotechnology

Microbial Evolution and Systematics

Metabolic Diversity of Microorganisms

Functional Diversity of Bacteria

Diversity of Bacteria

Diversity of Archaea

Diversity of Eukaryotic Microorganisms

Methods in Microbial Ecology

Microbial Ecosystems

Nutrient Cycles

Microbiology of the Built Environment

Microbial Symbioses

Microbial Interactions With Humans

Immunity and Host Defense

Immune Mechanisms

Molecular Immunology

Epidemiology

Person-To-Person Bacterial and Viral Diseases

Vectorborne and Soilborne Bacterial and Viral Diseases

Water and Food As Vehicles of Bacterial Diseases

Eukaryotic Pathogens: Fungal and Parasitic Diseases

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