Question 1

Which are considered true enteric pathogens?

Accepted Answer

A) Salmonella 
B) Klebsiella 
C) Proteus 
D) Enterobacter 
E) Shigella 
A) Salmonella 
B) Klebsiella 
C) Proteus 
D) Enterobacter 
E) Shigella A

Question 2

Which of the following is an agent of the sexually-transmitted disease chancroid?

Accepted Answer

A) Haemophilus aegyptius 
B) Haemophilus influenzae 
C) Haemophilus parainfluenzae 
D) Haemophilus ducreyi 
E) Haemophilus aphrophilus 
A) Haemophilus aegyptius 
B) Haemophilus influenzae 
C) Haemophilus parainfluenzae 
D) Haemophilus ducreyi 
E) Haemophilus aphrophilus D

Question 3

Typhoid fever has the following characteristics, except

Accepted Answer

A) it is spread by handling reptiles. 
B) it is transmitted by ingesting fecally contaminated food and water. 
C) chronic carriers harbor the pathogens in their gallbladder. 
D) it can infect the small intestine with fever, diarrhea, and abdominal pain. 
E) it can become a septicemia, spread to lymph nodes and spleen, and cause liver abscesses. 
A) it is spread by handling reptiles. 
B) it is transmitted by ingesting fecally contaminated food and water. 
C) chronic carriers harbor the pathogens in their gallbladder. 
D) it can infect the small intestine with fever, diarrhea, and abdominal pain. 
E) it can become a septicemia, spread to lymph nodes and spleen, and cause liver abscesses. A

Question 4

Shigella species have the following characteristics, except

Accepted Answer

A) they are non-motile. 
B) they release endotoxin. 
C) they belong to Enterobacteriaceae. 
D) they infect the small intestine. 
E) they produce enterotoxin. 
A) they are non-motile. 
B) they release endotoxin. 
C) they belong to Enterobacteriaceae. 
D) they infect the small intestine. 
E) they produce enterotoxin.

Question 5

Yersinia pestis

Accepted Answer

A) was virulent in the Middle Ages but is no longer virulent. 
B) has humans as an endemic reservoir. 
C) does not respond to antimicrobic drugs. 
D) is usually transmitted by a flea vector. 
E) All of these choices are correct. 
A) was virulent in the Middle Ages but is no longer virulent. 
B) has humans as an endemic reservoir. 
C) does not respond to antimicrobic drugs. 
D) is usually transmitted by a flea vector. 
E) All of these choices are correct.

Question 6

A cause of epiglottitis in children and young adults is

Accepted Answer

A) Haemophilus influenzae. 
B) Haemophilus ducreyi. 
C) Haemophilus aegyptius. 
D) Haemophilus parainfluenzae. 
E) Haemophilus aphrophilus. 
A) Haemophilus influenzae. 
B) Haemophilus ducreyi. 
C) Haemophilus aegyptius. 
D) Haemophilus parainfluenzae. 
E) Haemophilus aphrophilus.

Question 7

Pseudomonas is an enteric gram-negative rod.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following bacterial genera contain members that are very similar physiologically to Pseudomonas and cause a similar spectrum of opportunistic infections?

Accepted Answer

A) Hemophilus 
B) Stenotrophomonas 
C) Burkholderia 
D) Legionella 
E) both Burkholderia and Stenotrophomonas
F)All of these choices are correct. 
A) Hemophilus 
B) Stenotrophomonas 
C) Burkholderia 
D) Legionella 
E) both Burkholderia and Stenotrophomonas
F)All of these choices are correct.

Question 9

Chancroid is characterized by

Accepted Answer

A) sexually transmission. 
B) geographical distribution in the tropics and subtropics. 
C) lesions which develop at the portal of entry. 
D) bubo-like swelling of the lymph nodes. 
E) All of these choices are correct. 
A) sexually transmission. 
B) geographical distribution in the tropics and subtropics. 
C) lesions which develop at the portal of entry. 
D) bubo-like swelling of the lymph nodes. 
E) All of these choices are correct.

Question 10

Klebsiella has a large _____ that contributes to its ability to cause chronic lung infections.

Accepted Answer

The answer of Klebsiella has a large _____ that contributes...

Question 11

Distinguish the four different pathogenic strains of
E.coli with regard to: a) names of the strains, b) virulence factors, and c) symptoms.

Accepted Answer

a) The four different pathogenic strains

Question 12

The pathogen that causes Legionnaires'pneumonia also causes a milder infection called Pontiac fever.

Accepted Answer

A) True 
 B)False

Question 13

Compare and contrast shigellosis and salmonellosis.

Accepted Answer

Shigellosis and salmonellosis are both b

Question 14

Pasteurization of milk helps to prevent

Accepted Answer

A) tularemia. 
B) pertussis. 
C) legionellosis. 
D) brucellosis. 
E) shigellosis. 
A) tularemia. 
B) pertussis. 
C) legionellosis. 
D) brucellosis. 
E) shigellosis.

Question 15

E.coli O157:H7 and E.coli O111:H7 differ in their

Accepted Answer

A) Gram reaction. 
B) capsular antigen. 
C) flagellar antigen. 
D) cell wall antigen. 
A) Gram reaction. 
B) capsular antigen. 
C) flagellar antigen. 
D) cell wall antigen.

Question 16

Which of the following is not correct concerning Legionnaires'disease?

Accepted Answer

A) L.pneumophila lives in close associations with free-living amoebas. 
B) The disease is communicable from person to person. 
C) Symptoms include cough, diarrhea, and abdominal pain. 
D) It is more common in males over 50 years of age. 
E) Cases have been traced to the fallout from the Mount Saint Helen's volcano. 
A) L.pneumophila lives in close associations with free-living amoebas. 
B) The disease is communicable from person to person. 
C) Symptoms include cough, diarrhea, and abdominal pain. 
D) It is more common in males over 50 years of age. 
E) Cases have been traced to the fallout from the Mount Saint Helen's volcano.

Question 17

Species of Shigella are characteristically non-motile.Based on this information you ca predict that members of the Shigella genus

Accepted Answer

A) have K antigens. 
B) do not have H antigens. 
C) will not grow on MacConkey agar. 
D) will not have O antigens. 
A) have K antigens. 
B) do not have H antigens. 
C) will not grow on MacConkey agar. 
D) will not have O antigens.

Question 18

All of the following are coliforms that cause opportunistic and nosocomial infections, except

Accepted Answer

A) Enterobacter. 
B) Citrobacter. 
C) Shigella. 
D) Klebsiella. 
E) Serratia. 
A) Enterobacter. 
B) Citrobacter. 
C) Shigella. 
D) Klebsiella. 
E) Serratia.

Question 19

Exotoxins that target and bind to surface receptors of the intestinal lining are specifically termed _____.

Accepted Answer

The answer of Exotoxins that target and bind to surface...

Question 20

Whooping cough is transmitted via respiratory droplets.The___stage lasts 1-2 weeks, while the _________stage is characterized by severe coughing.

Accepted Answer

A) primary; secondary 
B) catarrhal; paroxysmal 
C) incubation; convalescent 
D) low T-cell; high macrophage 
E) incubation; invasion 
A) primary; secondary 
B) catarrhal; paroxysmal 
C) incubation; convalescent 
D) low T-cell; high macrophage 
E) incubation; invasion

Exam 20: The Gram-Negative Bacilli of Medical Importance

Which are considered true enteric pathogens?

Which of the following is an agent of the sexually-transmitted disease chancroid?

Typhoid fever has the following characteristics, except

Shigella species have the following characteristics, except

Yersinia pestis

A cause of epiglottitis in children and young adults is

Pseudomonas is an enteric gram-negative rod.

Which of the following bacterial genera contain members that are very similar physiologically to Pseudomonas and cause a similar spectrum of opportunistic infections?

Chancroid is characterized by

Klebsiella has a large _____ that contributes to its ability to cause chronic lung infections.

Distinguish the four different pathogenic strains of E.coli with regard to: a) names of the strains, b) virulence factors, and c) symptoms.

The pathogen that causes Legionnaires'pneumonia also causes a milder infection called Pontiac fever.

Compare and contrast shigellosis and salmonellosis.

Pasteurization of milk helps to prevent

E.coli O157:H7 and E.coli O111:H7 differ in their

Which of the following is not correct concerning Legionnaires'disease?

Species of Shigella are characteristically non-motile.Based on this information you ca predict that members of the Shigella genus

All of the following are coliforms that cause opportunistic and nosocomial infections, except

Exotoxins that target and bind to surface receptors of the intestinal lining are specifically termed _____.

Whooping cough is transmitted via respiratory droplets.The___stage lasts 1-2 weeks, while the _________stage is characterized by severe coughing.

The Main Themes of Microbiology

The Chemistry of Biology

Tools of the Laboratory: Methods of Studying Microorganisms

A Survey of Prokaryotic Cells and Microorganisms

A Survey of Eukaryotic Cells and Microorganisms

An Introduction to Viruses

Microbial Nutrition, Ecology, and Growth

An Introduction to Microbial Metabolism: the Chemical Crossroads of Life

Microbial Genetics

Genetic Engineering: a Revolution in Molecular Biology

Physical and Chemical Agents for Microbial Control

Drugs, Microbes, Host--The Elements of Chemotherapy

Microbe-Human Interactions: Infection and Disease

An Introduction to Host Defenses and Innate Immunities

Adaptive, Specific Immunity and Immunization

Disorders in Immunity

Procedures for Identifying Pathogens and Diagnosing Infections

The Gram-Positive and Gram-Negative Cocci of Medical Importance

The Gram-Positive Bacilli of Medical Importance

Miscellaneous Bacterial Agents of Disease

The Fungi of Medical Importance

The Parasites of Medical Importance

Introduction to Viruses That Infect Humans: the Dna Viruses

The Rna Viruses That Infect Humans

Environmental Microbiology

Applied and Industrial Microbiology

Filters

Whooping cough is transmitted via respiratory droplets.The_stage lasts 1-2 weeks, while the _______stage is characterized by severe coughing.