Question 1

Shigellosis can be differentiated from salmonellosis by

Accepted Answer

A)  the presence of nonmotile noncoliforms in bloody diarrhea. 
B)  the presence of bloody diarrhea. 
C)  abdominal cramps and fever. 
D)  the presence of nonmotile noncoliforms. 
E)  the lack of fever. 
A)  the presence of nonmotile noncoliforms in bloody diarrhea. 
B)  the presence of bloody diarrhea. 
C)  abdominal cramps and fever. 
D)  the presence of nonmotile noncoliforms. 
E)  the lack of fever.

Question 2

Among the areas of the female genital tract, which of the following is NOT colonized by Neisseria gonorrhoeae?

Accepted Answer

A)  the pelvic organs 
B)  the uterus 
C)  the Fallopian tubes 
D)  the vagina 
E)  the cervix 
A)  the pelvic organs 
B)  the uterus 
C)  the Fallopian tubes 
D)  the vagina 
E)  the cervix

Question 3

Which of the following coliforms is the most common cause of non- nosocomial urinary tract infections?

Accepted Answer

A)  Enterobacter 
B)  Escherichia coli 
C)  Serratia marcescens 
D)  Klebsiella pneumoniae 
E)  Proteus mirabilis 
A)  Enterobacter 
B)  Escherichia coli 
C)  Serratia marcescens 
D)  Klebsiella pneumoniae 
E)  Proteus mirabilis

Question 4

People can reduce the chances of contracting rabbit fever by avoiding rabbits, muskrats, and (fleas/lice/ticks).

Accepted Answer

The answer of People can reduce the chances of contracting...

Question 5

Which of the following statements about Neisseria gonorrhoeae is FALSE?

Accepted Answer

A)  It causes disease in humans only. 
B)  Infected women are often asymptomatic. 
C)  The gonococci secrete a protease that destroys secretory IgA. 
D)  The gonococci stick to epithelial cells via fimbriae and capsules. 
E)  The gonococci induce lasting immunity. 
A)  It causes disease in humans only. 
B)  Infected women are often asymptomatic. 
C)  The gonococci secrete a protease that destroys secretory IgA. 
D)  The gonococci stick to epithelial cells via fimbriae and capsules. 
E)  The gonococci induce lasting immunity.

Question 6

A lung specimen from a pneumonia patient contains Gram- negative bacilli. Laboratory test results on the bacteria show they are nonmotile coliforms with a thick capsule. Which pathogen is the likely cause of the pneumonia?

Accepted Answer

A)  Hafnia 
B)  Serratia 
C)  Klebsiella 
D)  Escherichia coli 
E)  Enterobacter 
A)  Hafnia 
B)  Serratia 
C)  Klebsiella 
D)  Escherichia coli 
E)  Enterobacter

Question 7

Of the three disease caused by Yersinia pestis, only (bubonic/black/pneumonic) plague is communicable between humans.

Accepted Answer

The answer of Of the three disease caused by Yersinia...

Question 8

Bordetella pertussis causes disease by

Accepted Answer

A)  irritating the diaphragm, which leads to severe coughing attacks. 
B)  the development of pneumonia. 
C)  suppressing the production of mucus by the respiratory lining. 
D)  interfering with the action of the ciliated epithelial cells of the trachea. 
E)  forming a pseudomembrane that obstructs the larynx. 
A)  irritating the diaphragm, which leads to severe coughing attacks. 
B)  the development of pneumonia. 
C)  suppressing the production of mucus by the respiratory lining. 
D)  interfering with the action of the ciliated epithelial cells of the trachea. 
E)  forming a pseudomembrane that obstructs the larynx.

Question 9

Which of the following pairs is MISMATCHED?

Accepted Answer

A)  noncoliform opportunistic Enterobacteriaceae; Proteus, Morganella 
B)  coliform Enterobacteriaceae; rapid lactose fermenters 
C)  coliform Enterobacteriaceae; opportunistic pathogens 
D)  noncoliform Enterobacteriaceae; non- lactose- fermenters 
E)  nonpathogenic Enterobacteriaceae; Salmonella, Shigella 
A)  noncoliform opportunistic Enterobacteriaceae; Proteus, Morganella 
B)  coliform Enterobacteriaceae; rapid lactose fermenters 
C)  coliform Enterobacteriaceae; opportunistic pathogens 
D)  noncoliform Enterobacteriaceae; non- lactose- fermenters 
E)  nonpathogenic Enterobacteriaceae; Salmonella, Shigella

Question 10

Which of the following bacteria can metabolize a large range of organic compounds and is a frequent nosocomial pathogen of cystic fibrosis patients? (There is no abnormal coloration of the mucus in these patients.)

Accepted Answer

A)  Klebsiella pneumoniae 
B)  Haemophilus influenzae 
C)  Burkholderia 
D)  Coxiella burnetii 
E)  Pseudomonas aeruginosa 
A)  Klebsiella pneumoniae 
B)  Haemophilus influenzae 
C)  Burkholderia 
D)  Coxiella burnetii 
E)  Pseudomonas aeruginosa

Question 11

Strains of the same species of enteric bacteria are identified by their (H/K/O) antigens, components of the outer membrane.

Accepted Answer

The answer of Strains of the same species of enteric...

Question 12

A young woman has a pelvic infection. A specimen contains bacilli that are bile salt tolerant, as shown by black growth on a bile- esculin agar plate. Her infection is likely caused by

Accepted Answer

A)  Bartonella henselae. 
B)  Neisseria gonorrhoeae. 
C)  Bacteroides fragilis. 
D)  Haemophilus ducreyi. 
E)  Pseudomonas aeruginosa. 
A)  Bartonella henselae. 
B)  Neisseria gonorrhoeae. 
C)  Bacteroides fragilis. 
D)  Haemophilus ducreyi. 
E)  Pseudomonas aeruginosa.

Question 13

Neisseria is distinguished from many other Gram- negative pathogens by being (catalase/oxidase/dismutase) positive.

Accepted Answer

The answer of Neisseria is distinguished from many other Gram-...

Question 14

Compare and contrast Yersinia pestis and Francisella tularensis with respect to clinical manifestations, mechanisms of transmission, reservoirs, and pathogenesis.

Accepted Answer

Both organisms can result in a pulmonary

Question 15

How does Salmonella grow in host cells? How does it differ from Shigella?

Accepted Answer

Salmonella is usually ingested by way of

Question 16

Which of the following bacteria requires heme for its growth?

Accepted Answer

A)  Yersinia 
B)  Haemophilus 
C)  Shigella 
D)  Bordetella 
E)  Salmonella 
A)  Yersinia 
B)  Haemophilus 
C)  Shigella 
D)  Bordetella 
E)  Salmonella

Question 17

Cat scratch disease is caused by Bartonella (bacilliformis/henselae/quintana).

Accepted Answer

The answer of Cat scratch disease is caused by Bartonella...

Question 18

Which of the following statements regarding Neisseria meningitidis is FALSE?

Accepted Answer

A)  Up to 40% of the population are carriers. 
B)  Humans are the only natural carriers. 
C)  It often causes meningitis. 
D)  Transmission is via respiratory droplets. 
E)  There are vaccines available to prevent infection with all strains. 
A)  Up to 40% of the population are carriers. 
B)  Humans are the only natural carriers. 
C)  It often causes meningitis. 
D)  Transmission is via respiratory droplets. 
E)  There are vaccines available to prevent infection with all strains.

Question 19

After a week of asymptomatic infection with Bordetella pertussis, the patient has cold- like (catarrhal) symptoms for a week or two followed a period of severe paroxysmal episodes of coughing that leave the patient anoxic and fatigued.

Accepted Answer

A) True 
 B)False

Question 20

Pneumonia caused by Klebsiella pneumoniae often involves the destruction of (alveoli/macrophages/epithelium) and the production of bloody sputum.

Accepted Answer

The answer of Pneumonia caused by Klebsiella pneumoniae often involves...

Exam 20: Pathogenic Gram-Negative Cocci and Bacilli

Shigellosis can be differentiated from salmonellosis by

Among the areas of the female genital tract, which of the following is NOT colonized by Neisseria gonorrhoeae?

Which of the following coliforms is the most common cause of non- nosocomial urinary tract infections?

People can reduce the chances of contracting rabbit fever by avoiding rabbits, muskrats, and (fleas/lice/ticks).

Which of the following statements about Neisseria gonorrhoeae is FALSE?

A lung specimen from a pneumonia patient contains Gram- negative bacilli. Laboratory test results on the bacteria show they are nonmotile coliforms with a thick capsule. Which pathogen is the likely cause of the pneumonia?

Of the three disease caused by Yersinia pestis, only (bubonic/black/pneumonic) plague is communicable between humans.

Bordetella pertussis causes disease by

Which of the following pairs is MISMATCHED?

Which of the following bacteria can metabolize a large range of organic compounds and is a frequent nosocomial pathogen of cystic fibrosis patients? (There is no abnormal coloration of the mucus in these patients.)

Strains of the same species of enteric bacteria are identified by their (H/K/O) antigens, components of the outer membrane.

A young woman has a pelvic infection. A specimen contains bacilli that are bile salt tolerant, as shown by black growth on a bile- esculin agar plate. Her infection is likely caused by

Neisseria is distinguished from many other Gram- negative pathogens by being (catalase/oxidase/dismutase) positive.

Compare and contrast Yersinia pestis and Francisella tularensis with respect to clinical manifestations, mechanisms of transmission, reservoirs, and pathogenesis.

How does Salmonella grow in host cells? How does it differ from Shigella?

Which of the following bacteria requires heme for its growth?

Cat scratch disease is caused by Bartonella (bacilliformis/henselae/quintana).

Which of the following statements regarding Neisseria meningitidis is FALSE?

After a week of asymptomatic infection with Bordetella pertussis, the patient has cold- like (catarrhal) symptoms for a week or two followed a period of severe paroxysmal episodes of coughing that leave the patient anoxic and fatigued.

Pneumonia caused by Klebsiella pneumoniae often involves the destruction of (alveoli/macrophages/epithelium) and the production of bloody sputum.

A Brief History of Microbiology

The Chemistry of Microbiology

Cell Structure and Function

Microscopy, Staining, and Classification

Microbial Metabolism

Microbial Nutrition and Growth

Microbial Genetics

Recombinant Dna Technology

Controlling Microbial Growth in the Environment

Controlling Microbial Growth in the Body: Antimicrobial Drugs

Characterizing and Classifying Prokaryotes

Characterizing and Classifying Eukaryotes

Characterizing and Classifying Viruses, Viroids, and Prions

Infection, Infectious Disease, and Epidemiology

Innate Immunity

Adaptive Immunity

Immunization and Immune Testing

Immune Disorders

Pathogenic Gram-Positive Bacteria

Rickettsias, Chlamydias, Spirochetes, and Vibrios

Pathogenic Fungi

Parasitic Protozoa, Helminths, and Arthropod Vectors

Pathogenic Dna Viruses

Pathogenic Rna Viruses

Applied and Environmental Microbiology

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