Question 1

The larval stage of pinworms is found in (cows/fish/humans).

Accepted Answer

The answer of The larval stage of pinworms is found...

Question 2

The ________ is an accessory organ of the digestive system.

Accepted Answer

A)  esophagus 
B)  stomach 
C)  tongue 
D)  duodenum 
E)  anus 
A)  esophagus 
B)  stomach 
C)  tongue 
D)  duodenum 
E)  anus

Question 3

Diagnosis of hepatitis B infection is made by the observation of which of the following in the patient's body fluids?

Accepted Answer

A)  O antigens 
B)  enterotoxins 
C)  endospores 
D)  oocysts 
E)  Dane particles 
A)  O antigens 
B)  enterotoxins 
C)  endospores 
D)  oocysts 
E)  Dane particles

Question 4

Staphylococcal food poisoning is called an intoxication disorder because

Accepted Answer

A)  toxic bacteria are ingested in the food. 
B)  the bacteria produce type III secretion system toxins. 
C)  affected people appear drunk. 
D)  toxins produced by the bacteria growing in the food are ingested along with the food. 
E)  the bacteria release toxins when they are digested. 
A)  toxic bacteria are ingested in the food. 
B)  the bacteria produce type III secretion system toxins. 
C)  affected people appear drunk. 
D)  toxins produced by the bacteria growing in the food are ingested along with the food. 
E)  the bacteria release toxins when they are digested.

Question 5

Marine mammals are the normal host for Anisakis simplex adults.

Accepted Answer

A) True 
 B)False

Question 6

Of the following, who is most likely to develop a chronic infection with hepatitis B virus?

Accepted Answer

A)  children between the ages of 2 and 12 
B)  newborns 
C)  females at puberty 
D)  young adults 
E)  the elderly 
A)  children between the ages of 2 and 12 
B)  newborns 
C)  females at puberty 
D)  young adults 
E)  the elderly

Question 7

Isolation of Gram-positive (bacilli/cocci/vibrios) from food suspected of being the source of an outbreak of diarrhea indicates the disease is the result of bacterial intoxication.

Accepted Answer

The answer of Isolation of Gram-positive (bacilli/cocci/vibrios) from food suspected...

Question 8

Escherichia coli O157:H7 produces (cholera/Shiga/Staphylococcal)-like toxin, which inhibits protein synthesis, kills cells, and can result in death of the infected individual.

Accepted Answer

The answer of Escherichia coli O157:H7 produces (cholera/Shiga/Staphylococcal)-like toxin, which...

Question 9

List and compare the three types of amebiasis.

Accepted Answer

The three types of amebiasis differ in t

Question 10

Supportive care is the only treatment for staphylococcal food poisoning.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following statements is TRUE with regard to oral herpes?

Accepted Answer

A)  Lesions become more severe with each recurrence. 
B)  Ninety percent of all cases are caused by human herpesvirus 2 (HHV-2). 
C)  Lesions can be triggered by emotional stress or physiologic changes. 
D)  Primary infections are usually characterized by severe lesions. 
E)  There is an effective cure for oral herpes. 
A)  Lesions become more severe with each recurrence. 
B)  Ninety percent of all cases are caused by human herpesvirus 2 (HHV-2). 
C)  Lesions can be triggered by emotional stress or physiologic changes. 
D)  Primary infections are usually characterized by severe lesions. 
E)  There is an effective cure for oral herpes.

Question 12

Which of the following is the major sign or symptom of mumps?

Accepted Answer

A)  diarrhea 
B)  nausea and vomiting 
C)  deafness 
D)  parotitis 
E)  difficulty in breathing 
A)  diarrhea 
B)  nausea and vomiting 
C)  deafness 
D)  parotitis 
E)  difficulty in breathing

Question 13

Cholera toxin is composed of five A subunits and one B subunit.

Accepted Answer

A) True 
 B)False

Question 14

Most peptic ulcers are the result of colonization of the stomach by

Accepted Answer

A)  Vibrio cholerae. 
B)  Escherichia coli O157:H7. 
C)  Shigella dysenteriae. 
D)  Salmonella enterica. 
E)  Helicobacter pylori. 
A)  Vibrio cholerae. 
B)  Escherichia coli O157:H7. 
C)  Shigella dysenteriae. 
D)  Salmonella enterica. 
E)  Helicobacter pylori.

Question 15

Production of (acid/dextran/glycocalyces) allows Streptococcus mutans to colonize the mouth.

Accepted Answer

The answer of Production of (acid/dextran/glycocalyces) allows Streptococcus mutans to...

Question 16

Urease is an important virulence factor of which of the following?

Accepted Answer

A)  Porphyromonas gingivalis 
B)  Vibrio cholerae 
C)  Escherichia coli O157:H7 
D)  Helicobacter pylori 
E)  Shigella dysenteriae 
A)  Porphyromonas gingivalis 
B)  Vibrio cholerae 
C)  Escherichia coli O157:H7 
D)  Helicobacter pylori 
E)  Shigella dysenteriae

Question 17

The major symptoms of cholera are attributable to which of the following?

Accepted Answer

A)  production of urease 
B)  activity of a type III secretion system 
C)  cessation of protein synthesis in host cells 
D)  death of cells lining the intestinal tract 
E)  activation of adenylate cyclase 
A)  production of urease 
B)  activity of a type III secretion system 
C)  cessation of protein synthesis in host cells 
D)  death of cells lining the intestinal tract 
E)  activation of adenylate cyclase

Question 18

Shigellosis can be differentiated from salmonellosis by the fact that Shigella

Accepted Answer

A)  stimulates intestinal epithelial cells to phagocytize it. 
B)  multiplies in phagocytic vesicles. 
C)  kills host cells. 
D)  multiplies in the host cell's cytosol. 
E)  causes severe diarrhea, abdominal cramps, and fever. 
A)  stimulates intestinal epithelial cells to phagocytize it. 
B)  multiplies in phagocytic vesicles. 
C)  kills host cells. 
D)  multiplies in the host cell's cytosol. 
E)  causes severe diarrhea, abdominal cramps, and fever.

Question 19

Explain how Helicobacter pylori is able to resist the unfavorable environment of the stomach in order to cause disease.

Accepted Answer

Helicobacter pylori is able to resist th

Question 20

What member of the human intestinal microbiota occasionally causes life-threatening disease?

Accepted Answer

A)  Escherichia coli O157:H7 
B)  Clostridium difficile 
C)  Salmonella enterica 
D)  Giardia intestinalis 
E)  Lactobacillus 
A)  Escherichia coli O157:H7 
B)  Clostridium difficile 
C)  Salmonella enterica 
D)  Giardia intestinalis 
E)  Lactobacillus

Exam 23: Microbial Diseases of the Digestive System

The larval stage of pinworms is found in (cows/fish/humans).

The ________ is an accessory organ of the digestive system.

Diagnosis of hepatitis B infection is made by the observation of which of the following in the patient's body fluids?

Staphylococcal food poisoning is called an intoxication disorder because

Marine mammals are the normal host for Anisakis simplex adults.

Of the following, who is most likely to develop a chronic infection with hepatitis B virus?

Isolation of Gram-positive (bacilli/cocci/vibrios) from food suspected of being the source of an outbreak of diarrhea indicates the disease is the result of bacterial intoxication.

Escherichia coli O157:H7 produces (cholera/Shiga/Staphylococcal)-like toxin, which inhibits protein synthesis, kills cells, and can result in death of the infected individual.

List and compare the three types of amebiasis.

Supportive care is the only treatment for staphylococcal food poisoning.

Which of the following statements is TRUE with regard to oral herpes?

Which of the following is the major sign or symptom of mumps?

Cholera toxin is composed of five A subunits and one B subunit.

Most peptic ulcers are the result of colonization of the stomach by

Production of (acid/dextran/glycocalyces) allows Streptococcus mutans to colonize the mouth.

Urease is an important virulence factor of which of the following?

The major symptoms of cholera are attributable to which of the following?

Shigellosis can be differentiated from salmonellosis by the fact that Shigella

Explain how Helicobacter pylori is able to resist the unfavorable environment of the stomach in order to cause disease.

What member of the human intestinal microbiota occasionally causes life-threatening disease?

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 Diseases, and Epidemiology

Innate Immunity

Adaptive Immunity

Immunization and Immune Testing

Immune Disorders

Microbial Diseases of the Skin and Wounds

Microbial Diseases of the Nervous System and Eyes

Microbial Cardiovascular and Systemic Diseases

Microbial Diseases of the Respiratory System

Microbial Diseases of the Urinary and Reproductive Systems

Applied and Industrial Microbiology

Microbial Ecology and Microbiomes

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