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Mycology And Virology > Mycology > Flashcards

Mycology Flashcards

1
Q

Baker’s yeast

A

Sacchromyces cerevisiae

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2
Q

Antler hyphae

A

Trichophyton schoenleinii

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3
Q

Ability to exist in two forms

A

Dimorphic

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4
Q

Sexual spore formed within an ascus following meiosis

A

Ascospore

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5
Q

Fruiting structure that contains asci

A

Ascocarp

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6
Q

Single-cel fungus that reproduces by budding or by fission

A

Yeast

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7
Q

Sac-like structure that contain ascospores, characteristic of Ascomycetes

A

Ascus

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8
Q

Sexual spore formed produced as an outgrowth of basidium

A

Basidiospore

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9
Q

Sexual reproduction requiring the interaction of two different thalli

A

Heterothallic

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10
Q

Structure that contains basidiospores

A

Basidium

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11
Q

Hyphae produced above the surface of the agar media

A

Aerial mycelium

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13
Q

Thick-walled resting or survival structure (aka Chlamydoconidia)

A

Chlamydospore

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14
Q

Specialized Hyphal structure that carries the conidia

A

Conidiophores

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15
Q

Enclosed ascocarp, composed of layers of hyphae that contain randomly dispersed asci

A

Cleistothecium

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16
Q

Conidium derived from the fragmentation of specialized Hyphae

A

Arthroconidium

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17
Q

displaying two morphologic types, one environmental (mould) and one in vivo (yeast)

A

Dimorphic

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18
Q

Smooth, referring to colonial morphology

A

Glabrous

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19
Q

Asexual reproductive structure formed in any manner that does not involve cleavage

A

Conidium

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20
Q

Blastomyces, Coccidiodes, Histoplasma, Paracoccidiodes, Sporothrix, and Penicilliumare example of what type of fungi?

A

Dimorphic

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21
Q

Exophiala spp, is example of?

A

Polymorphic fungi

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22
Q

Rapidly growing organisms found in soil

A

Zygomycota e.g Mucor, Rhizopus, Absidia

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23
Q

Causative agent of Tinea versicolor, characterized by discoloration or depigmentation and scaling of the skin

A

Malasseza furfur

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24
Q

Hair fragments are floated on a sterile water supplemented with a few drops of 10% yeast extract

A

Hair perforation test

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25
Q

Media for yeast ID

A

Cornmeal agar

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26
Q

A term used for the absence of reproductive structure

A

Mycelia sterilia

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27
Q

Most common primary culture media

A

Sabouraud Dextrose agar

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28
Q

Positive result for germ tube test

A

Germ tube formation

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29
Q

Two organisms positive in germ tube test

A

Candida albicans. Candida dubliniensis

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30
Q

Secondary branches that support the phialides

A

Metulae

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31
Q

Horizontal hypha that connects one mycelium to another

A

Stolon

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32
Q

Positive result of woods lamp

A

Fluorescent

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33
Q

Specimen used to diagnose fungal meningitis

A

CSF

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34
Q

Causative agent of fungal meningitis

A

Cryptococcus neoformans

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35
Q

Used to demonstrate the capsule

A

India ink

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36
Q

Penetrating agent

A

Dimethyl sulfoxide

37
Q

Most common mounting medium

A

Lactophenol cotton blue

38
Q

Color of C. albicans, C. tropicallis, C. parapsilosis, C. glabrata/krusei in CHROMagar

A

Green, metallic blue, white, pink

39
Q

Binds to the polysaccharide present in chitin

A

Calcofluor white

40
Q

asexual spore produced within a sporangium

A

Sporangiospores

41
Q

Funnel-shaped structure that carries the conidia

A

Collarette

42
Q

Substance detected in birdseed agar

A

Melanin

43
Q

Enzyme present in niger seed agar

A

Phenol oxidase

44
Q

Organism who has the ability to reduce nitrate

A

Cryptococcus neoformans

45
Q

Positive result of Rice media

A

Microsporum auduinii - discoloration of rice

Microsporum canis - woolly appearance or production in the rice

46
Q

Positive result in Christensen Urea agar

A

Trichophyton mentagrophytes - [+] pink

Trichophyton rubrum - [-] yellow

47
Q

Whole fungus; the anamorphic plus the teleomorphic state of the fungus

A

Holomorph

48
Q

Asexual spore formed by budding of the yeast cell

A

Blastoconidia

49
Q

Sexual reproduction can take place within one thallus

A

Homothallic

50
Q

Colorless or transparent

A

Hyaline

51
Q

vegetative unit of a mould

A

Hypha

52
Q

Slender outgrowth of a cell bearing conidia

A

Sterigmata

53
Q

Enclosed ascocarp with a pore at the top through which the ascospores are discharged

A

Perithecium

54
Q

Cell wall content of fungi

A

Chitin

55
Q

Asexual form of fungal sporulation (imperfect state)

A

Anamorph

56
Q

Borne within a Hypha

A

Intercalary

57
Q

Vegetative growth of a fungus; includes an interwoven mass of Hyphae

A

Thallus

58
Q

Larger of two types of conidia produced by a mould

A

Macroconidium

59
Q

Smaller of two types of conidia produced by a mould

A

Microconidium

60
Q

Mass of Hyphae that make up the thallus of a mould

A

Mycelium

61
Q

Cell with opening trough which conidia are produced

A

Phialides

62
Q

Hyphae produced on the surface or extending into the agar media

A

Vegetative mycelium

63
Q

Connected yeast cells (Blastoconidia) that resemble a Hypha but contain areas of constriction between adjacentcells

A

Pseudohyphae

64
Q

Multi-cellular clump of cells that does not produce any spores or conidia

A

Scleotium

65
Q

Cross-wall in a Hypha

A

Septum

66
Q

Sexual form of Fungal sporulation (perfect state)

A

Teleomorph

67
Q

Borne at the end of a Hypha

A

Terminal

68
Q

Source of the first antifungal drugs

A

Streptomyces noursei

69
Q

First anti fungal drugs

A

Nystatin

70
Q

Reverse dimorphism

A

Malassazia furfur

71
Q

Colors of aspergillus colonies is best studied in what agar

A

Czapek dox agar

72
Q

fungi that grow at a high temperature

A

Thermophilic

73
Q

An extension of the sporangiophore into the base of the sporangium

A

Columella

74
Q

Stalk bearing the sporangium

A

Sporangiophores

75
Q

Clearing agents

A

KOH

76
Q

Sac-like structure in which the asexual sporangiospores develop

A

Sporangium

77
Q

cell that produce conidia

A

Conidiogenous cell

78
Q

Primary anti fungal drugs that targets almost all fungi

A

Amphotericin B

79
Q

Source of amphotericin B

A

Streptomyces nodosus

80
Q

First antibiotic against fungi

A

Nystatin

81
Q

Source of nystatin

A

Streptomyces noursei

82
Q

Converts largosterol to ergosterol

A

Azzoles

83
Q

Prevents oxidation of squalene epoxidase

A

Allylamines

84
Q

Administer together with amphotericin B

A

Flucytosine

85
Q

Inhibit glycan synthesis

A

Caspofungin

86
Q

Inhibit chitin synthesis

A

Nikkomycin

87
Q

pigmented in dark color

A

Demetiaceous

Mycology And Virology (5 decks)

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