Question 1

Which of the following is not true about leprosy?

Accepted Answer

A)  it is caused by Hansen's bacillus in honor of its discoverer
B)  the leprosy bacillus is highly virulent
C)  armadillos harbor a genetically identical M.leprae
D)  early signs appear as small, spotty lesions colored differently than the surrounding skin
E)  the number of new cases in the U.S.each year is about 100 to 200F) A) and B)
G) C) and D)

Question 2

Diphtherotoxin targets cells in the _____ and _____.

Accepted Answer

The answer of Diphtherotoxin targets cells in the _____ and...

Question 3

Anthrax is:

Accepted Answer

A)  a zoonosis.
B)  transmitted by contact, inhalation, and ingestion.
C)  a disease that, in humans, can cause a rapidly fatal toxemia and septicemia.
D)  only seen sporadically in the United States.
E)  All of the choices are correct.F) C) and D)
G) C) and E)

Question 4

For which of the following diseases does the "feather test" provide evidence of early infection?

Accepted Answer

A)  tuberculosis
B)  botulism
C)  tetanus
D)  leprosy
E)  anthraxF) C) and E)
G) None of the above

Question 5

The fermentation by-products of Clostridium perfringens can destroy muscle structure in myonecrosis.

Accepted Answer

A) True 
 B)False

Question 6

In both botulism and tetanus, respiratory muscles cannot facilitate breathing and, if untreated, respiratory collapse leads to death.

Accepted Answer

A) True 
 B)False

Question 7

Erysipeloid is transmitted by:

Accepted Answer

A)  inhalation of spores from hides and wool of animals.
B)  ingestion of improperly cooked hot dogs.
C)  an abrasion on skin coming in contact with infected swine or other animals.
D)  contaminated soil entering deep puncture wounds.
E)  respiratory secretions.F) D) and E)
G) A) and B)

Question 8

_____ is a chronic progressive disease of the skin and nerves caused by Mycobacterium leprae.

Accepted Answer

The answer of _____ is a chronic progressive disease of...

Question 9

Mild, uncomplicated cases of pseudomembranous colitis may be treated by:

Accepted Answer

A)  debridement.
B)  wound cleansing.
C)  vancomycin for several weeks.
D)  withdrawal of antibiotics and replacement of lost fluids and electrolytes.
E)  All of the choices are correct.F) A) and E)
G) A) and D)

Question 10

Production of a neurotoxin that prevents acetylcholine release from motor neurons at neuromuscular junctions is a characteristic of:

Accepted Answer

A)  Clostridium botulinum.
B)  Clostridium perfringens.
C)  Clostridium difficile.
D)  Clostridium tetani.
E)  All of the choices are correct.F) C) and D)
G) A) and B)

Question 11

Mycobacterium bovis is attenuated and used in the _____ vaccine.

Accepted Answer

The answer of Mycobacterium bovis is attenuated and used in...

Question 12

The major virulence factor of Corynebacterium diphtheriae that causes serious systemic effects is:

Accepted Answer

A)  capsule.
B)  metachromatic granules.
C)  exotoxin.
D)  endospores.
E)  endotoxin.F) C) and D)
G) B) and D)

Question 13

All of the following pertain to Listeria monocytogenes, except:

Accepted Answer

A)  gram positive
B)  sporeformer
C)  contaminant of dairy products, meats, poultry
D)  causes foodborne listeriosis
E)  bacterial cells multiply within the cytoplasm of a host cellF) B) and C)
G) None of the above

Question 14

Which of the following may be recommended for treating gangrene?

Accepted Answer

A)  debridement of the wound
B)  hyperbaric chamber
C)  amputation of affected limb
D)  rigorous cleansing of deep wounds
E)  All of the choices are correctF) B) and C)
G) None of the above

Question 15

Discuss the types of foods and food preparation associated with foodborne botulism, and explain how neurotoxins gain entry to the foods.

Accepted Answer

The answer of Discuss the types of foods and food...

Question 16

All of the following pertain to tuberculosis, except:

Accepted Answer

A)  live bacilli can remain dormant in the lungs and reactivate later in life.
B)  symptoms of active TB include low-grade fever, coughing, fatigue, weight loss, and night sweats.
C)  lung infection can disseminate to many other organs in extrapulmonary TB.
D)  the BCG vaccine is used in other countries.
E)  antimicrobials cannot treat and cure tuberculosis.F) A) and E)
G) C) and D)

Question 17

Characteristics of Bacillus anthracis include all the following, except:

Accepted Answer

A)  capsule and exotoxins are virulence factors.
B)  anaerobic.
C)  reservoir includes infected grazing animals and contaminated soil.
D)  gram positive bacillus.
E)  sporeformer.F) A) and B)
G) C) and E)

Question 18

The foodborne disease that involves neurotoxin is:

Accepted Answer

A)  gastrointestinal anthrax.
B)  Bacillus cereus intoxication.
C)  botulism.
D)  Clostridium perfringens gastroenteritis.
E)  All of the choices are correct.F) C) and D)
G) B) and E)

Question 19

The _____ test injects 0.1 ml of PPD intradermally into the forearm.

Accepted Answer

The answer of The _____ test injects 0.1 ml of...

Question 20

All of the following pertain to listeriosis, except:

Accepted Answer

A)  it causes symptoms of fever, diarrhea, and sore throat.
B)  it causes a serious septicemia and meningitis in the elderly, immunocompromised, and infants.
C)  intrauterine infection usually results in fetal death.
D)  adequate pasteurization and thorough cooking of food can improve prevention.
E)  enterotoxin of the organism causes symptoms.F) A) and E)
G) B) and D)

Exam 19: The Gram-Positive Bacilli of Medical Importance

All of the following pertain to listeriosis, except:

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Characteristics of Bacillus anthracis include all the following, except:

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Which of the following is not true about leprosy?

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For which of the following diseases does the "feather test" provide evidence of early infection?

Correct AnswerverifiedShow Answer

Erysipeloid is transmitted by:

Correct AnswerverifiedShow Answer

Production of a neurotoxin that prevents acetylcholine release from motor neurons at neuromuscular junctions is a characteristic of:

Correct AnswerverifiedShow Answer

The foodborne disease that involves neurotoxin is:

Correct AnswerverifiedShow Answer

Anthrax is:

Correct AnswerverifiedShow Answer

Mild, uncomplicated cases of pseudomembranous colitis may be treated by:

Correct AnswerverifiedShow Answer

_____ is a chronic progressive disease of the skin and nerves caused by Mycobacterium leprae.

Correct AnswerverifiedShow Answer

The major virulence factor of Corynebacterium diphtheriae that causes serious systemic effects is:

Correct AnswerverifiedShow Answer

In both botulism and tetanus, respiratory muscles cannot facilitate breathing and, if untreated, respiratory collapse leads to death.

Correct AnswerverifiedShow Answer

The _____ test injects 0.1 ml of PPD intradermally into the forearm.

Correct AnswerverifiedShow Answer

All of the following pertain to Listeria monocytogenes, except:

Correct AnswerverifiedShow Answer

Discuss the types of foods and food preparation associated with foodborne botulism, and explain how neurotoxins gain entry to the foods.

Correct AnswerverifiedShow Answer

Mycobacterium bovis is attenuated and used in the _____ vaccine.

Correct AnswerverifiedShow Answer

All of the following pertain to tuberculosis, except:

Correct AnswerverifiedShow Answer

The fermentation by-products of Clostridium perfringens can destroy muscle structure in myonecrosis.

Correct AnswerverifiedShow Answer

Diphtherotoxin targets cells in the _____ and _____.

Correct AnswerverifiedShow Answer

Which of the following may be recommended for treating gangrene?

Correct AnswerverifiedShow Answer

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Diphtherotoxin targets cells in the _ and _.

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