Question 1

Organization of Salmonella into serotypes is based on

Accepted Answer

A) Lipopolysaccharide O antigens 
B) Shiga toxins 
C) M cell ruffles 
D) Distending cytotoxins 
E) Vacuolating cytotoxins 
A) Lipopolysaccharide O antigens 
B) Shiga toxins 
C) M cell ruffles 
D) Distending cytotoxins 
E) Vacuolating cytotoxins

Question 2

A vaccine is available for which of following hepatitis viruses?

Accepted Answer

A) Hepatitis B 
B) Hepatitis C 
C) Hepatitis E 
D) Hepatitis G 
A) Hepatitis B 
B) Hepatitis C 
C) Hepatitis E 
D) Hepatitis G

Question 3

Which of the following organisms is the most appropriate match for nosocomial gastrointestinal infection?

Accepted Answer

A) Salmonella enterica 
B) Enterotoxigenic Escherichia coli (ETE
C)  
C) Clostridium difficile 
D) Staphylococcus aureus 
E) Campylobacter jejuni 
A) Salmonella enterica 
B) Enterotoxigenic Escherichia coli (ETE
C)  
C) Clostridium difficile 
D) Staphylococcus aureus 
E) Campylobacter jejuni

Question 4

Answer true or false to the reason given in the following statement: Because the ID50 of Shigella infection is very high,this infection is easily spread.

Accepted Answer

A) True 
 B)False

Question 5

Identify and describe the three categories used to classify gastrointestinal infections,and provide several examples of microbes responsible for each category.

Accepted Answer

The three categories used to classify ga

Question 6

Answer true or false to the reason given in the following statement: Saliva will protect against the establishment of many bacteria because it contains IgG.

Accepted Answer

A) True 
 B)False

Question 7

Domestic pets harbor _____ and are an important reservoir for enteritis caused by this bacterium.

Accepted Answer

A) Vibrio parahaemolyticus 
B) Salmonella enterica serotype Typhi 
C) Campylobacter jejuni 
D) Helicobacter pylori 
E) Shigella boydii 
A) Vibrio parahaemolyticus 
B) Salmonella enterica serotype Typhi 
C) Campylobacter jejuni 
D) Helicobacter pylori 
E) Shigella boydii

Question 8

Explain how hepatitis B produces a partly double-stranded DNA genome.

Accepted Answer

During viral replication of the hepatiti

Question 9

Which of the following characteristics is shared by most,but not all,viruses that infect the gastrointestinal tract?

Accepted Answer

A) Non-enveloped capsid 
B) Double-stranded RNA 
C) Double-stranded DNA 
D) Enveloped capsid 
E) Single-stranded RNA 
A) Non-enveloped capsid 
B) Double-stranded RNA 
C) Double-stranded DNA 
D) Enveloped capsid 
E) Single-stranded RNA

Question 10

Which of the following is a characteristic of Shigella species?

Accepted Answer

A) Lactose fermentation 
B) Bacillary dysentery 
C) Invasion of the small intestine 
D) Peritrichous flagella 
E) Bovine reservoir 
A) Lactose fermentation 
B) Bacillary dysentery 
C) Invasion of the small intestine 
D) Peritrichous flagella 
E) Bovine reservoir

Question 11

Unlike most hepatitis viruses,_____ is an enveloped DNA virus.

Accepted Answer

A) Hepatitis A 
B) Hepatitis B 
C) Hepatitis C 
D) Hepatitis D 
E) Hepatitis E 
A) Hepatitis A 
B) Hepatitis B 
C) Hepatitis C 
D) Hepatitis D 
E) Hepatitis E

Question 12

All of the following are associated with all members of the Enterobacteriaceae except

Accepted Answer

A) Facultative anaerobes 
B) Serotyped according to O, K, and H antigens 
C) Gram-negative 
D) Lactose fermentation 
E) Non-spore-forming rods 
A) Facultative anaerobes 
B) Serotyped according to O, K, and H antigens 
C) Gram-negative 
D) Lactose fermentation 
E) Non-spore-forming rods

Question 13

What is the most likely mode of transmission for Salmonella enterica serotype Typhi?

Accepted Answer

A) Chronic human carriers 
B) Contaminated water 
C) Shellfish 
D) Undercooked poultry 
E) Ground meat 
A) Chronic human carriers 
B) Contaminated water 
C) Shellfish 
D) Undercooked poultry 
E) Ground meat

Question 14

All of the following are characteristics of hepatitis D except

Accepted Answer

A) Co-infection or superinfection with hepatitis B required for replication 
B) Satellite virus 
C) Partly double-stranded DNA genome 
D) Dependent on hepatitis B antigens to become infectious 
A) Co-infection or superinfection with hepatitis B required for replication 
B) Satellite virus 
C) Partly double-stranded DNA genome 
D) Dependent on hepatitis B antigens to become infectious

Question 15

Which of the following organisms is the most appropriate match for food poisoning by bacterial infection?

Accepted Answer

A) Clostridium difficile 
B) Enterotoxigenic Escherichia coli (ETE
C)  
C) Campylobacter jejuni 
D) Staphylococcus aureus 
E) Salmonella species 
A) Clostridium difficile 
B) Enterotoxigenic Escherichia coli (ETE
C)  
C) Campylobacter jejuni 
D) Staphylococcus aureus 
E) Salmonella species

Question 16

Describe the life cycle of a hookworm.

Accepted Answer

Females release fertilized eggs into the

Question 17

Ruffling of M cells is associated with which of the following infections?

Accepted Answer

A) Enteroinvasive Escherichia coli (EIE
C)  
B) Bacillary dysentery 
C) Cholera 
D) Salmonella gastroenteritis 
E) Cryptosporidiosis 
A) Enteroinvasive Escherichia coli (EIE
C)  
B) Bacillary dysentery 
C) Cholera 
D) Salmonella gastroenteritis 
E) Cryptosporidiosis

Question 18

What is the most likely mode of transmission for Vibrio cholera?

Accepted Answer

A) Shellfish 
B) Contaminated water 
C) Chronic human carriers 
D) Ground meat 
E) Undercooked poultry 
A) Shellfish 
B) Contaminated water 
C) Chronic human carriers 
D) Ground meat 
E) Undercooked poultry

Question 19

Answer true or false to the reason given in the following statement: Dental plaque is considered a biofilm because it coats the tooth.

Accepted Answer

A) True 
 B)False

Question 20

Flagella of the Enterobacteriaceae used for antigen classification are collectively known as _____ antigens.

Accepted Answer

A) O 
B) A 
C) H 
D) F 
E) K 
A) O 
B) A 
C) H 
D) F 
E) K

Exam 22: Infections of the Digestive System

Organization of Salmonella into serotypes is based on

A vaccine is available for which of following hepatitis viruses?

Which of the following organisms is the most appropriate match for nosocomial gastrointestinal infection?

Answer true or false to the reason given in the following statement: Because the ID50 of Shigella infection is very high,this infection is easily spread.

Identify and describe the three categories used to classify gastrointestinal infections,and provide several examples of microbes responsible for each category.

Answer true or false to the reason given in the following statement: Saliva will protect against the establishment of many bacteria because it contains IgG.

Domestic pets harbor _____ and are an important reservoir for enteritis caused by this bacterium.

Explain how hepatitis B produces a partly double-stranded DNA genome.

Which of the following characteristics is shared by most,but not all,viruses that infect the gastrointestinal tract?

Which of the following is a characteristic of Shigella species?

Unlike most hepatitis viruses,_____ is an enveloped DNA virus.

All of the following are associated with all members of the Enterobacteriaceae except

What is the most likely mode of transmission for Salmonella enterica serotype Typhi?

All of the following are characteristics of hepatitis D except

Which of the following organisms is the most appropriate match for food poisoning by bacterial infection?

Describe the life cycle of a hookworm.

Ruffling of M cells is associated with which of the following infections?

What is the most likely mode of transmission for Vibrio cholera?

Answer true or false to the reason given in the following statement: Dental plaque is considered a biofilm because it coats the tooth.

Flagella of the Enterobacteriaceae used for antigen classification are collectively known as _____ antigens.

What is Microbiology and Why Does it Matter?

Fundamental Chemistry for Microbiology

Essentials of Metabolism

An Introduction to Cell Structure and Host-Pathogen Relationships

Requirements for Infection

Transmission of Infection, the Compromised Host, Epidemiology, and Diagnosing Infections

Principles of Disease

Emerging and Re-Emerging Infectious Disease

The Clinical Significance of Bacterial Anatomy

Bacterial Growth

Microbial Genetics and Infectious Disease

The Structure and Infection Cycle of Viruses

Viral Infection

Parasitic and Fungal Infections

The Innate Immune Response

The Adaptive Immune Response

Failures of the Immune Response

Control of Microbial Growth with Disinfectants and Antiseptics

Antibiotics and Antimicrobial Drugs

Antibiotic Resistance

Infections of the Respiratory System

Infections of the Genitourinary System

Infections of the Central Nervous System

Infections of the Blood and Lymph

Infections of the Skin and Eyes

Filters

Answer true or false to the reason given in the following statement: Because the ID₅₀ of Shigella infection is very high,this infection is easily spread.