Question 1

Explain why hepatitis D is referred to as a satellite virus.Describe the conditions under which hepatitis D is replicated.

Accepted Answer

Hepatitis D is known as a satellite viru

Question 2

Salmonella infections are categorized as all of the following except

Accepted Answer

A) Typhoid fever 
B) Gastroenteritis 
C) Chronic infections 
D) Enteric fever 
E) Bacillary dysentery 
A) Typhoid fever 
B) Gastroenteritis 
C) Chronic infections 
D) Enteric fever 
E) Bacillary dysentery

Question 3

Which of the following is not typical of cholera infections?

Accepted Answer

A) Fever 
B) Use of filamentous pili for colonization 
C) Toxin production 
D) Voluminous rice stool 
A) Fever 
B) Use of filamentous pili for colonization 
C) Toxin production 
D) Voluminous rice stool

Question 4

All of the following toxins are produced by pathogenic Escherichia coli except

Accepted Answer

A) Vacuolating cytotoxin 
B) Heat-labile toxin 
C) Pore-forming toxin 
D) Shiga toxin 
E) Heat-stable toxin 
A) Vacuolating cytotoxin 
B) Heat-labile toxin 
C) Pore-forming toxin 
D) Shiga toxin 
E) Heat-stable toxin

Question 5

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

Accepted Answer

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

Question 6

Infections with Escherichia coli O157:H7 may require

Accepted Answer

A) Intravenous corticosteroids 
B) Kidney dialysis 
C) Removal of part of the large intestine 
D) Removal of the gall bladder 
E) Probiotics 
A) Intravenous corticosteroids 
B) Kidney dialysis 
C) Removal of part of the large intestine 
D) Removal of the gall bladder 
E) Probiotics

Question 7

Answer true or false to the reason given in the following statement: Endemic intestinal infections are more commonly seen in children because they have underdeveloped digestive systems.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following microbes cause gastrointestinal infections from ingesting tainted shellfish?

Accepted Answer

A) Staphylococcus aureus 
B) Bacillus cereus 
C) Clostridium perfringens 
D) Vibrio parahaemolyticus 
E) Trichinella spiralis 
A) Staphylococcus aureus 
B) Bacillus cereus 
C) Clostridium perfringens 
D) Vibrio parahaemolyticus 
E) Trichinella spiralis

Question 9

Which of the following is a mismatched pair?

Accepted Answer

A) Vibrio cholerae: intravenous liquid replacement 
B) Shigella dysenteriae: very low ID?? 
C) Giardia duodenalis: anemia 
D) Escherichia coli O157:H7: renal failure 
E) Clostridium difficile: nosocomial infection 
A) Vibrio cholerae: intravenous liquid replacement 
B) Shigella dysenteriae: very low ID?? 
C) Giardia duodenalis: anemia 
D) Escherichia coli O157:H7: renal failure 
E) Clostridium difficile: nosocomial infection

Question 10

Helicobacter pylori organisms survive in acid environments by generating _____ through the production of _____.

Accepted Answer

A) Ruffles of intestinal tract; pili 
B) Apoptotic lesions; vacuolating cytotoxin 
C) Ulcers; micro abscesses 
D) Ammonia; urease 
E) microtubule-associated vacuoles; distending cytotoxin 
A) Ruffles of intestinal tract; pili 
B) Apoptotic lesions; vacuolating cytotoxin 
C) Ulcers; micro abscesses 
D) Ammonia; urease 
E) microtubule-associated vacuoles; distending cytotoxin

Question 11

Hepatitis A is from which family of viruses?

Accepted Answer

A) Hepadnaviridae 
B) Flaviviridae 
C) Reoviridae 
D) Picornaviridae 
E) Caliciviridae 
A) Hepadnaviridae 
B) Flaviviridae 
C) Reoviridae 
D) Picornaviridae 
E) Caliciviridae

Question 12

Which family of viruses does Hepatitis B belong to?

Accepted Answer

A) Hepadnaviridae 
B) Flaviviridae 
C) Reoviridae 
D) Picornaviridae 
E) Caliciviridae 
A) Hepadnaviridae 
B) Flaviviridae 
C) Reoviridae 
D) Picornaviridae 
E) Caliciviridae

Question 13

Which of the following gastrointestinal infections are caused by protozoan parasites?

Accepted Answer

A) Cryptosporidiosis 
B) Hookworm infection 
C) Giardiasis 
D) Hookworm and giardiasis 
E) Cryptosporidiosis and giardiasis 
A) Cryptosporidiosis 
B) Hookworm infection 
C) Giardiasis 
D) Hookworm and giardiasis 
E) Cryptosporidiosis and giardiasis

Question 14

Which of the following statements is false?

Accepted Answer

A) A complication of extended use of antibiotics is the development of opportunistic infections of the gastrointestinal tract 
B) Clostridium difficile infections have become more frequent in health care facilities 
C) An endogenous infection is one that is derived from a person's own microbiome 
D) Helicobacter pylori is only spread by the fecal-oral route 
E) Fever, vomiting, abdominal pain, and diarrhea are the usual symptoms of gastrointestinal infections 
A) A complication of extended use of antibiotics is the development of opportunistic infections of the gastrointestinal tract 
B) Clostridium difficile infections have become more frequent in health care facilities 
C) An endogenous infection is one that is derived from a person's own microbiome 
D) Helicobacter pylori is only spread by the fecal-oral route 
E) Fever, vomiting, abdominal pain, and diarrhea are the usual symptoms of gastrointestinal infections

Question 15

Answer true or false to the following statement: Most states in the US have mandated that all ground meat must contain antibiotics because ground meat cooked only to the rare stage can harbor live pathogens.

Accepted Answer

A) True 
 B)False

Question 16

Which family of viruses does Hepatitis G belong to?

Accepted Answer

A) Hepadnaviridae 
B) Flaviviridae 
C) Reoviridae 
D) Picornaviridae 
E) Caliciviridae 
A) Hepadnaviridae 
B) Flaviviridae 
C) Reoviridae 
D) Picornaviridae 
E) Caliciviridae

Question 17

Which of the following is produced b E.coli?

Accepted Answer

A) Heat-labile toxin 
B) Pore-forming cytotoxin 
C) Shiga toxin 
D) Heat-stable toxin 
E) All of the above 
A) Heat-labile toxin 
B) Pore-forming cytotoxin 
C) Shiga toxin 
D) Heat-stable toxin 
E) All of the above

Question 18

What is the most likely mode of transmission for enterohemorrhagic Escherichia coli (EHEC)?

Accepted Answer

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

Question 19

Answer true or false to the following statement: Because there is no animal model for typhoid fever,development of a vaccine has been delayed.

Accepted Answer

A) True 
 B)False

Exam 22: Infections of the Digestive System

Explain why hepatitis D is referred to as a satellite virus.Describe the conditions under which hepatitis D is replicated.

Salmonella infections are categorized as all of the following except

Which of the following is not typical of cholera infections?

All of the following toxins are produced by pathogenic Escherichia coli except

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

Infections with Escherichia coli O157:H7 may require

Answer true or false to the reason given in the following statement: Endemic intestinal infections are more commonly seen in children because they have underdeveloped digestive systems.

Which of the following microbes cause gastrointestinal infections from ingesting tainted shellfish?

Which of the following is a mismatched pair?

Helicobacter pylori organisms survive in acid environments by generating _____ through the production of _____.

Hepatitis A is from which family of viruses?

Which family of viruses does Hepatitis B belong to?

Which of the following gastrointestinal infections are caused by protozoan parasites?

Which of the following statements is false?

Answer true or false to the following statement: Most states in the US have mandated that all ground meat must contain antibiotics because ground meat cooked only to the rare stage can harbor live pathogens.

Which family of viruses does Hepatitis G belong to?

Which of the following is produced b E.coli?

What is the most likely mode of transmission for enterohemorrhagic Escherichia coli (EHEC)?

Answer true or false to the following statement: Because there is no animal model for typhoid fever,development of a vaccine has been delayed.

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

Helicobacter pylori organisms survive in acid environments by generating _ through the production of _.