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Microbiology > micro quiz set chp 19 20 21 > Flashcards

micro quiz set chp 19 20 21 Flashcards

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Biology 101 flashcards
1
Q

The most common STD in the US is caused by:
a. Candida albicans
b. C. trachomatis
c. N. gonorrhoeae
d. Trichomonas vaginalis

A

B. C. trachomatis

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2
Q

______ is the most common cause of pneumonia in the world
a. C. pneumoniae
b. L. pneumophila
c. M. pneumoniae
d. S. pneumoniae

A

D. S. pneumoniae

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3
Q

Gas gangrene is always caused by
a. Bacillus anthracis
b. Clostridium spp
c. S. aureus
d. S. pyogenes

A

B. Clostridium spp.

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4
Q

The bacterial species most frequently associated with necrotizing fasciitis is
a. Francisella tularensis
b. S. aureus
c. S. pneumoniae
d. S. pyogenes

A

D. S. pyogenes

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5
Q

Which of the following diseases may be caused by C. trachomatis
a. inclusion conjunctivitis
b. nongonococcal urethritis
c. trachoma
d. all of the above

A

D. all of the above

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6
Q

Which of the following organisms is the most common cause of urethritis?
a. C. albicans
b. C. trachomatis
c. N. gonorrhoeae
d. T. vaginalis

A

B. C. trachomatis

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7
Q

Which of the following organisms is the most common cause of cystitis?
a. C. trachomatis
b. E. coli
c. N. gonorrhoeae
d. T. vaginalis

A

B. E. coli

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8
Q

Which of the following is the most common arthropod-borne disease in the US?
a. Lyme disease
b. Plague
c. Spotted fever rickettsiosis
d. tularemia

A

A. Lyme disease

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9
Q

Which of the following diseases is not caused by a spirochete?
a. Lyme disease
b. plague
c. relapsing fever
d. syphilis

A

D. Plague

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10
Q

Which of the following associations is incorrect?
a. Lyme disease and tick
b. plague and rat flea
c. spotted fever rickettsiosis and tick
d. typhoid fever and mosquito

A

D. typhoid fever and mosquito

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11
Q

Which of the following diseases is caused by an encapsulated yeast?
a. coccidioidomycosis
b. cryptococcosis
c. histoplasmosis
d. Pneumocystis pneumonia

A

B. Cryptococcosis

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12
Q

Which of the following diseases is not caused by a dimorphic fungus?
a. coccidioidomycosis
b. cryptococcosis
c. histoplasmosis
d. sporotrichosis

A

B. Cryptococcosis

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13
Q

Which of the following diseases is a synonym for ringworm infection of the nails?
a. tinea barbae
b. tinea cruris
c. tinea nigra
d. tinea unguium

A

D. tinea unguium

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14
Q

Which of the following is the most common systemic fungal disease in the US?
a. cryptococcosis
b. coccidioidomycosis
c. histoplasmosis
d. Pneumocystis pneumonia

A

C. histoplasmosis

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15
Q

One should associate the india ink preparation with diagnosis of
a. cryptococcal meningitis
b. thrush
c. tinea pedis
d. yeast vaginitis

A

A. cryptococcal meningitis

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16
Q

Bread moulds are most commonly associated with
a. thrush
b. tinea versicolor
c. vaginitis
d. zygomycosis

A

D. zygomycosis

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17
Q

Which of the following is the fungus most often isolated from human clinical specimens?
a. C. albicans
b. C. neoformans
c. H. capsulatum
d. Pneumocystis jirovecii

A

A. C. albicans

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18
Q

Which of the following methods is the quickest and most common way to diagnose yeast vaginitis?
a. culture
b. India ink preparation
c. KOH preparation
d. saline wet mount

A

D. saline wet mount

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19
Q

In the US, C. albicans causes approx _______ of the cases of vaginitis
a. 10%
b. 25%
c. 33%
d. 50 %

A

C. 33%

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20
Q

Tinea cruris is a ringworm infection of
a. feet
b. groin area
c. nails
d. palms of the hands

A

B. groin area

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21
Q

Humans develop malaria after the injection of Plasmodium _______ into the bloodstream by an infected female Anopheles mosquito when she takes a blood meal.
a. male and female gametocytes
b. schizonts
c. sporozoites
d. trophozoites

A

C. sporozoites

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22
Q

These Plasmodium life cycle stages must be ingested by a female Anopheles mosquito for the Plasmodium life cycle to continue in the mosquito.
a. male and female gametocytes
b. schizonts
c. sporozoites
c. trophozoites

A

A. male and female gametocytes

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23
Q

Which of the following protozoal diseases is not transmitted via an arthropod vector?
a. African trypanosomiasis
b. American trypanosomiasis
c. babesiosis
d. giardiasis

A

D. giardiasis

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24
Q

Which of the following protozoal diseases is least likely to be transmitted via blood transfusion?
a. American trypanosomiasis
b. babesiosis
c. malaria
d. trichomoniasis

A

D. trichomoniasis

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25
Q

Which of the following protozoal diseases is least likely to be transmitted via an infected food handler who fails to wash his or her hands after using the bathroom?
a. amebiasis
b. cryptosporidiosis
c. giardiasis
d. toxoplasmosis

A

D. toxoplasmosis

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26
Q

You are visiting a friend whose parents raise pigs. Which of the following diseases are you most likely to acquire by drinking well water at their farm?
a. amebiasis
b. balantidiasis
c. cryptosporidiosis
d. giardiasis

A

B. balantidiasis

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27
Q

You are working on a cattle ranch. Which of the following diseases are you most apt to acquire as you perform your duties at the ranch?
a. amebiasis
b. balantidiasis
c. cryptosporidiosis
d. giardiasis

A

C. cryptosporidiosis

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28
Q

Which of the following protozoal diseases are you most likely to acquire by eating a rare hamburger?
a. amebiasis
b. balantidiasis
c. giardiasis
d. toxoplasmosis

A

D. toxoplasmosis

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29
Q

Which of the following associations is incorrect?
a. African trypanosomiasis and tsetse fly
b. amebiasis and fecally contaminated water
c. Chagas disease and mosquito
d. toxoplasmosis and cats

A

C. Chagas disease and mosquito

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30
Q

Which of the following is an example of an infectious disease that is caused by a facultative parasite?
a. African trypanosomiasis
b. giardiasis
c. malaria
d. PAM

A

D. PAM

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31
Q

_________ is a common cause of subacute bacterial endocarditis (SBE), and a less common cause of cystitis

A

Staphylococcus epidermidis

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32
Q

Certain strains of _________ are the so-called flesh-eating bacteria.

A

Streptococcus pyogenes

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33
Q

_________ is a common cause of bacterial pneumonia, meningitis, and otitis media

A

Streptococcus pneumoniae

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34
Q

___________ is the most common cause of toxic shock syndrome

A

Staphylococcus aureus

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35
Q

____________ is on of the most common causes of neonatal meningitis

A

Streptococcus agalactiae

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36
Q

Borrelia burgdorferi

A

Lyme Disease

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37
Q

Treponema pallidum

A

Syphilis

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38
Q

Clostridium perfringens

A

Gas gangrene

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39
Q

Yersinia pestis

A

Plagues

40
Q

Bordetella pertussis

A

Whooping cough

41
Q

Staphylococcus aureus is a

A

Gram-positive coccus

42
Q

Which of the following bacterial diseases is not transmitted by a tick?
a. lyme disease
b. spotted fever rickettsiosis
c. plague
d. tularemia

A

C. Plague

43
Q

Which of the following diseases is not caused by an obligate intracellular pathogen?
a. chlamydial urethritis
b. human monocytic ehrlichiosis
c. spotted fever rickettsiosis
d. typhoid fever

A

D. Typhoid fever

44
Q

Which of the following bacteria is the most common cause of antibiotic-associated diarrhea?
a. Clostridium difficile
b. Escherichia coli
c. Salmonella enteritidis
d. Shigella sonnei

A

A. Clostridium difficile

45
Q

Trachoma (the leading cause of blindness in the world) is caused by a _________ species.
a. Chlamydia
b. Haemophilus
c. Neisseria
d. Rickettsia

A

A. Chlamydia

46
Q

Which of the following bacteria is not a common cause of neonatal meningitis?
a. Escherichia coli
b. Listeria monocytogenes
c. Neisseria meningitidis
d.. Streptococcus agalactiae

A

C. Neisseria meningitidis

47
Q

Which of the following bacterial diseases is not caused by an anaerobe?
a. Botulism
b. Gas gangrene
c. Tetanus
d. Tularemia

A

D. Tularemia

48
Q

Which of the following bacterial diseases is transmitted by a louse?
a. Epidemic typhus fever
b. Lyme disease
c. Plague
d. Spotted fever rickettsiosis

A

A. Epidemic typhus fever

49
Q

Which of the following diseases is not caused by a spore-forming bacterium?
a. Anthrax
b. Diphtheria
c. Gas gangrene
d. Tetanus

A

B. Diphtheria

50
Q

The etiologic agent of which of the following bacterial diseases cannot be grown on artificial culture medium?
a. Gonorrhea
b. Leprosy
c. Plague
d. Salmonellosis

A

B. Leprosy

51
Q

Which of the following bacteria is associated with gastric and duodenal ulcers?
a. Campylobacter pylori
b. Helicobacter pylori
c. Salmonella entertidis
d. Shigella sonnei

A

D. Helicobacter pylori

52
Q

T/F
Tuberculosis and Hansen disease (Leprosy) are caused by Mycoplasma species

A

False
Tuberculosis and Leprosy are caused by Mycobacterium species

53
Q

It is possible for scarlet fever and toxic shock syndrome to be caused by the same pathogen

A

True

54
Q

The most common cause of gas gangrene also causes a type of food poisoning

A

True

55
Q

Diseases caused by Mycobacterium species are referred to as mycoses

A

False
Diseases caused by Mycobacterium spp. are referred to as mycobacterial diseases; diseases caused by fungi are referred to as mycoses

56
Q

Botulism, gas gangrene, and tetanus are all caused by Clostridium spp.

A

True

57
Q

Gangrene is always caused by a bacterium

A

False
There are many different causes of gangrene, but Gas gangrene is always caused by a Clostridium spp.

58
Q

Trachoma, spotted fever rickettsiosis, and erhlichiosis are all caused by obligate intracellular pathogens

A

True

59
Q

a-Hemolytic streptococci of oral origin and Staphylococcus epidermidis are the common causes of SBE

A

True

60
Q

Haemophilus influenzae is the most common cause of influenza

A

influenza is caused by influenza viruses

61
Q

Meningitis could be caused by a virus, a bacterium, a fungus, or a protozoan

A

True

62
Q

A ringworm infection of the scalp, eyebrow and eyelashes

A

Tinea capitis

63
Q

An infection of the palms of the hands and , less commonly, the neck and feet caused by Hortaea werneckii

A

Tinea nigra

64
Q

An infection of scalp hair and, less commonly, eyebrows and eyelashes caused by Piedraia hortae

A

Black piedra

65
Q

An infection of moustache, beard, and pubic and axilla hair, usually caused by Trichosporon beigelii

A

White piedra

66
Q

A ringworm infection of the soles and between toes

A

Tinea pedis

67
Q

Valley fever is another name for cryptococcosis

A

False
Valley fever is another name for coccidioidomycosis

68
Q

The yeast form of Histoplasma capsulatum is quite distinctive because of its large capsule

A

False
The yeast form of H. capsulatum is not encapsulated; Cryptococcus neoformans is an encapsulated yeast

69
Q

Both histoplasmosis and cryptococcosis may be acquired by inhalation of dried bat droppings (guano)

A

True

70
Q

Moulds in the genus Mucor are commonly referred to as bread moulds

A

True

71
Q

If a patient is infected with a dimorphic fungus, it is likely that fungal hyphae would be seen in the infected tissues

A

False
A patient infected with a dimorphic fungus would have yeasts in their infected tissues

72
Q

Pneumocystis pneumonia is a common contributory cause of death in AIDS patients

A

True

73
Q

Tinea versicolor is caused by a yeast named Malassezia furfur

A

False
Tinea versicolor is caused by a mould name Malassezia furfur

74
Q

Mycetomas are respiratory infections

A

False
Mycetomas are chronic granulomatous infections that usually involve the feet or hands

75
Q

When grown at room temperature, Coccidioides immitis produces yeast colonies

A

False
Coccidioides immitis is a dimorphic fungus; it produces mould colonies when grown at room temperature

76
Q

Histoplasmosis is the most common systemic fungal infection in AIDS patients

A

True

77
Q

African trypanosomiasis, American trypanosomiasis, giardiasis, and trichomoniasis are caused by protozoa in the category of protozoa known as ___________

A

Flagellates

78
Q

Protozoa in the category of protozoa known as ______ move by means of pseudopodia

A

Amebas

79
Q

Cryptosporidiosis, malaria, and toxoplasmosis are caused by protozoa in the category of protozoa known as _________

A

Sporozoa

80
Q

In the category of protozoa known as ___________, only one protozoan causes human disease

A

Ciliates

81
Q

A disease known as PAM is caused by a protozoan in the category of protozoa known as______________

A

Amebas

82
Q

In the malarial parasite’s life cycle, humans become infected when a female Anopheles mosquito injects ________ while taking a blood meal

A

Sporozoites

83
Q

In the malarial parasite’s life cycle, female Anopheles mosquitoes become infected when they ingest male and female _________ (at least one of each) while taking a blood meal.

A

Gametocytes

84
Q

In the malarial parasite’s life cycle, _________ are released from infected liver cells

A

Merozoites

85
Q

In the malarial parasite’s life cycle, merozoites initially mature into _______ within red blood cells

A

trophozoites

86
Q

In the malarial parasite’s life cycle ________ are produced within female Anopheles mosquitoes

A

Sporozoites

87
Q

In a parasite’s life cycle, the definitive host harbors the adult or sexual stage of the parasite or the sexual phase of the life cycle

A

True

88
Q

The amebae that cause amebic keratitis and PAM are good examples of obligate parasites

A

False
They are good examples of facultative parasites

89
Q

In the malarial parasite’s life cycle, humans serve as definitive hosts

A

False
In the malarial parasite’s life cycle, humans serve as intermediate hosts and mosquitoes serve as definitive hosts

90
Q

When causing infections, parasitic protozoa and helminths are endoparasites

A

True

91
Q

Scabies is caused by and insect

A

Scabies is caused by and arachnid

92
Q

In a parasite’s life cycle, it is possible for a particular arthropod to serve as both a host and biologic vector.

A

True

93
Q

It is possible to acquire cryptosporidiosis, cyclosporiasis, and toxoplasmosis by ingesting oocysts

A

True

94
Q

Trichomonas vaginalis cannot survive very long outside of the human body because it has no cyst form

A

True

95
Q

Toxoplasmosis could be acquired by eating raw or rare meat

A

True

96
Q

African trypanosomiasis and American trypanosomiasis are transmitted by the same type of arthropod vector

A

False
African trypanosomiasis is transmitted by a tsetse fly
American trypanosomiasis is transmitted by a reduviid bug

Microbiology (3 decks)

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