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Fungi > Final Exam > Flashcards

Final Exam Flashcards

1
Q

Cell walls of Fungi is made up of?

A

Chitin, mannans, and other polysaccharide

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2
Q

For rigidity and support

A

Chitin

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3
Q

Cytoplasmic membrane contains…

A

Ergosterols

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4
Q

Fungi can divide sexually, asexually or both. True or false

A

True

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5
Q

The simplest fungus

A

Unicellular budding yeast

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6
Q

Elongation of apical cell produces thread like structure called…

A

Hypha

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7
Q

Tangled mass of hyphae

A

Mycelium

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8
Q

Mycelium can be formed both on yeast and filamentous fungi. Try or false

A

False

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9
Q

Classification of Fungi (Based on cell morphology)

A

Yeast, Yeast like fungi, Molds/Filamentous fungi, and Dimorphic fungi

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10
Q

Unicellular fungi which reproduce by budding

A

Yeast

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11
Q

On culture, yeast like fungi produces smooth and creamy colonies. True or false

A

False

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12
Q

Grows partly as yeast and partly as elongated cells resembling to a Hyphae

A

Yeast like Fungi

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13
Q

Cells resembling hyphae

A

Pseudohyphae

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14
Q

An Example of Yeast organism. Also known as capsulated yeast.

A

Cryptococcus neoformans

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15
Q

An example of Yeast like fungi

A

Candida albicans

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16
Q

Forms true mycelia and reproduce by formation of different types of spores

A

Molds/ Filamentous fungi

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17
Q

Common bread molds

A

Rhizopus

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18
Q

Common contaminants of mushrooms

A

Trichoderma

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19
Q

Occurs in two forms, molds or yeast

A

Dimorphic Fungi

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20
Q

A Dimorphic fungi is in a form of mold in what environment and at what temperature?

A

Soil - 25°C

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21
Q

A Dimorphic fungi is in a form of yeast in what environment and at what temperature?

A

Host tissue - 37°C

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22
Q

Most fungi causing systemic infections are Yeast. True or false

A

False - Dimorphic fungi not Yeast

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23
Q

Give 6 Dimorphic fungi that causes systemic infections

A

Histoplasma capsulatum
Blastomyces dermatidis
Paracoccidioides brasiliensis
Coccidioides immitis
Penicillium marneffei
Sporothrix schenkii

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24
Q

Systematic classification of Fungi Based on the formation of sexual spores

A

Zygomycetes
Ascomycetes
Basidiomycetes
Deuteromycetes

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25
Q

Fungi with unknown sexual phase or what we call Fungi imperfectii

A

Deuteromycetes

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26
Q

If the sexual phase of fungi is identified, it will be moved into different class and moved out of Deuteromycetes. True or false

A

True

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27
Q

Lower fungi, with broad and nonseptate hyphae

A

Zygomycetes

28
Q

What is the Asexual spores of Zygomycetes? It is present within a swollen sac-like structure called?

A

Sporangiopores, sporangium

29
Q

Resting thick walled cells in between hyphae

A

Zygospores

30
Q

Species with zygospores

A

Mucor, Absidia, and Rhizopus

31
Q

Have narrow and septate hyphae, it includes both yeast and filamentous fungi

A

Ascomycetes

32
Q

What is the Asexual spores of Ascomycetes, and where it is borne on?

A

Conidia, conidiophore

33
Q

Sexual spores of Ascomycetes, and where they are present

A

Ascospore, ascus

34
Q

Several asci can be seen on a fruiting bodies as seen in

A

Aspergillus and Penicillium

35
Q

Each ascus can contain what number of ascospores?

A

4 to 8

36
Q

It has sexual spores called Basidiospores

A

Basidiomycetes

37
Q

As a result of sexual fusion, a club shaped organ is formed that is called

A

Base or Basidium

38
Q

Vegetative structures of Fungi

A

Arthrospores, and Chlamydospores

39
Q

Arthrospores is formed by

A

Segmentation and condensation of Hyphae

40
Q

Thick walled resting spores

A

Chlamydospores

41
Q

The sexual reproduction of fungi is by formation of

A

Zygospores, ascospores and basidiospores

42
Q

Asexual reproduction of fungi

A

Budding of Fission

Spores (conidia) formation on a specialized structure

43
Q

Spores vary in size, shape, and color and these characteristics are not constant for a particular species. True or false

A

False - constant

44
Q

Small, single celled

A

Micro-conidia

45
Q

Large, single or many celled

A

Macro-conidia

46
Q

Two types of superficial mycoses

A

Cutaneous and Surface

47
Q

It can only affect the skin, hair and nails. It is mild but chronic

A

Superficial mycoses

48
Q

Two types of Deep mycoses

A

Subcutaneous and Systemic mycoses

49
Q

The infection is accidental and caused by saprophytes

A

Deep mycoses

50
Q

Superficial/Surface mycoses live exclusively on dead surfaces of skin and its appendeges. No contact with living tissues this no inflammatory response. True or false

A

True

51
Q

They live on skin, hair, and nails and needs keratin to grow

A

Detmatophytes

52
Q

Three genera of Dermatophytes

A

Trichophyton, Microsporum, and Epidermophyton

53
Q

Subcutaneous mycoses

A

Mycotic Mycetoma
Chromoblastomycosis
Sporotrichosis
Rhinosporidiosis
Subcutaneous phycomycoses

54
Q

Systemic mycoses examples

A

Cryptococcoses
Blastomycosis
Paracoccidiomycoses
Coccidioidomycoses
Histoplasmoses

55
Q

Caused by Candida sps, forms bridge between superficial and deep mycoses as it can cause cutaneous and systemic infections

A

Candidiasis

56
Q

Candidiasis cannot cause opportunistic infections. True or false

A

False - it can

57
Q

Patients with debilitating disease, altered physiological state

A

Opportunistic Infections

58
Q

Common lab contaminants on culture media

A

Aspergillus
Penicillium
Mucor
Rhizopus

59
Q

Penicillium notatum is now called?

A

Penicillium chrysogenum

60
Q

Ergot is from? It is used to induce uterine contractions

A

Claviceps purpurea

61
Q

Saccharomyces cerevisiae is used to make

A

Vaccines for Hepatitis B

62
Q

A Fungi that can be a source of food

A

Mushrooms

63
Q

It is used in production of alcohol and bread

A

Saccharomyces spps.

64
Q

It is a Eukaryotic protista, differ from bacteria and other prokaryotes. It can be unicellular and multicellular

A

Fungi

65
Q

Histoplasmosis is caused by

A

Histoplasma capsulatum

66
Q

Examples of Superficial/ surface Mycoses

A

Tinea versicolor
Tinea nigra
Piedra

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