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microbio - fungi Flashcards

0
Q

Unicellular growth form of fungi

A

Yeast

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1
Q

Eucaryotic cells that lack chlorophyll so they cannot generate thru photosynthesis. They do require aerobic environment.

A

Fungi

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2
Q

Multicellular colonies composed of clumps of intertwined branching hyphae

A

Molds

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3
Q

Reproducing bodies of molds.

A

Spore

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4
Q

Fungi that can grow as either a yeast or mold, depending on environmental conditions and temperature (usually growing as a yeast at body temperatures).

A

Dimorphic fungi

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5
Q

Culture for fungi

A

Saborauds agar

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6
Q

Fungi that live in and utilize organic matter (soil, rotten vegetation) as an energy source.

A

Saprophytes

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7
Q

Essential sterol in fungi

A

Ergosterol

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8
Q

Antifungal drug that destroys cm (ergosterol)

A

Amphiteracin B and nystatin

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9
Q

Antifungal drug that inhibits ergosterol synthesis

A

Ketoconazole

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10
Q

Superficial fungal infection

A

Pityriasis versicolor

Tinea nigra

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11
Q

Primary manifestation of superficial fungal infections

A

Pigment change of the skin

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12
Q

Pityriasis versicolor is caused by..

A

Malassezia furfur

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13
Q

Fungi can look like spaghetti (hyphae) and meat balls (spherical yeast)

A

Malassezia furfur

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14
Q

Lipophylic yeast

A

Malassezia furfur

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15
Q

Category of cutaneous fungal infection where fungi live in the dead, horny layer of skin, hair and nails.

A

Dermathophytic cells

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16
Q

Dermatophytic cells secreted an enzyme called…

A

Keratinase

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17
Q

Fungal infection of the body

A

Tinea corporis

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18
Q

Fungal infection of the hair (scalp)

A

Tinea capitis

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19
Q

Fungal infection of the groin and scrotum

A

Tinea cruris

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20
Q

Fungal infection of the foot

A

Tinea pedis

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21
Q

Fungal infection of the nails

A

Tinea unguium (onchomycosis)

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22
Q

First line drugs for treatment of dermatophytoses

A

Topical imidazole

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23
Q

Treatment for tinea capitis and tinea unguium

A

Oral griseofulvin

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24
Q

Subcutaneous fungal infection

A

Sporotrichosis

Chromoblastomycosis

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25
Q

Microorg that causes sporotrichosis

A

Sporothrix schenckii

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26
Q

Subcutaneous-fungal infections gain entrance to the body following…

A

Trauma to the skin

27
Q

Rose gardener’s disease

A

Sporotrichosis. (Sporothrix schenckii)

28
Q

Cigar-shape yeast

A

Sporothrix schenckii

29
Q

Infection from plant part trauma

A

Sporothrix schenckii

30
Q

T or F: spores can be transmitted from person to person

A

False. Never, it can be acquired thru inhalation as a spore.

31
Q

Systemic fungal infection.

A

Blastomycosis

Coccidiodomycosis

32
Q

Rarest systemic fungal infection

A

Blastomyces

33
Q

Broad-based budding yeast

A

Blastomyces

34
Q

Causes desert rheumatism and San Joaquin fever

A

Coccidioides immitis

35
Q

Coccidiodes immitis causes what diseases

A

San Joaquin fever

Desert rheumatism

36
Q

Coccidiodes immitis can be stained by

37
Q

Non budding spherioles

A

Coccidiodes immitis

38
Q

Arthroconidia

A

Coccidiodes immitis

39
Q

Most common cns fungal infection

A

Cryptococcus neoformans

40
Q

Cryptococcus neoformans is found in nature, especially in.

A

Pigeon droppings

41
Q

Can be found in pigeon droppings

A

Cryptococcus neoformans

42
Q

Encapsulated yeasts

A

Cryptococcus neoformans

43
Q

The key to diagnosis of this fungus is doing a lumbar puncture and analyzing the CSF. An India ink test is positive.

A

Cryptococcus neoformans

44
Q

Treatment for Cryptococcus neoformans

A

Amphotericin B

Fluconazole (or flucytosine)

45
Q

T or F: Cryptococcus neoformans is associated with AIDS.

46
Q

Torulosis

Aseptic meningitis

A

Cryptococcus neoformans

47
Q

Causes oral thrush

A

Candida albicans

48
Q

Diseases caused by Candida albicans

A

Diaper rush
Oral thrush
Vaginitis

49
Q

Cottage cheese vaginal discharge

A

Candida albicans

50
Q

Produces pseudohyphae

A

Candida albicans

51
Q

Fungus ball in the brain abscess

A

Aspergillus fumigatus

52
Q

Most common in chronic sinusitis

A

Aspergillus fumigatus

53
Q

Dichotomous branching hyphae

A

Aspergillus fumigatus

54
Q

The fungi-like bacteria

A

Actinomyces

Nocardia

55
Q

Lumpy jaw

A

Actinomyces Israeli

56
Q

When examined under microscope, the pus draining from the abscess of actinomyces infection reveals yellow granules called..

A

Sulfur granules

57
Q

Treatment for actinomyces and nocardia

A

SNAP
Sulfamethoxazole for Nocardia
Actinomyces is Pen G

58
Q

Madura foot

A

Pseudallescheria boydii

59
Q

Pilot’s wheel

A

Paracoccidiodes brasilensis

60
Q

Black nasal discharge + sinusitis

A

Mucormycosis / rhizopus

61
Q

Broad hyphae invading blood vessels walls

A

Mucormycosis / rhizopus

62
Q

Fungal infection (previously protozoa) common in AIDS

A

Pneumocystis jiroveci

63
Q

Stain for pneumocystis jiroveci

A

Silver stain

64
Q

Treatment for pneumocystis jiroveci

A

Trimethoprim-sulfamethoxazole

65
Q

Fungus that has no ergosterol

A

Pneumocystis jiroveci

Med Prep (52 decks)

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