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MYCOLOGY > INTRODUCTION TO MYCOLOGY > Flashcards

INTRODUCTION TO MYCOLOGY Flashcards

1
Q

What is the origin of Mycology?

A

Mykes

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2
Q

Differentiate:
Mycosis
Opportunistic Mycosis
Systematic mycosis

A

Fungal infection
Immunocompromised infection
Multi-organ infection

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3
Q

Alternate / practical approaches is classified by?

A

Reproduction
Thallus morphology

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4
Q

This is a cell with cell membranes, nuclear membrane and nucleus

A

Eukaryotic

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5
Q

This cannot produce their own food and they use ORGANIC compound for nutrients

A

Heterotrophs

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6
Q

They cannot move on their own

A

Non-motile

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7
Q

What do you call the “decaying matter”?

A

Saprobes

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8
Q

How do fungi reproduce?

A

Through microscopic propagules (spores)

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9
Q

Most fungi needs oxygen to survive, therefore there are?

A

Obligate aerobes

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10
Q

What is the most abundant amino polysaccharide and glucan of fungi?

A

Chitin

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11
Q

This is the site of caspofungin

A

N-acetyl glucosamine Beta glucan

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12
Q

This is an antifungal drug that treats aspergillus and Candida infection by inhibiting the cell wall synthesis.

A

Caspofungin

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13
Q

The cell membrane of a fungi is rich in?

A

Ergosterol

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14
Q

This is a sterol that helps with the rigidity of the cell.

A

Ergosterol

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15
Q

The cell membrane is the site of the action of these two antifungal drugs.

A

Amphotericin B and Azoles

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16
Q

What temperature does the following grow?
A. Yeast
B. Molds

A

A. 37’C
B. 22’C

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17
Q

What is the appearance of the following?
A. Yeast
B. Molds

A

A. Smooth, Creamy bacterial colony w/o aerial hyphae
B. Fuzzy, Woolly, Powdery

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18
Q

This form of fungi is unicellular, forms buds and it is based on biochemical tests.

A

Yeast

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19
Q

What is the type of reproduction of yeasts?

A

Budding/ fission (Asexual Reproduction)

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20
Q

Give an example of Yeast.

A

Cryptococcus neoformans (C. neoformans)

21
Q

C. Neoformans causes what?

A

Meningitis and Menigoencephalitis

22
Q

What is the stain used in C. neoformans?

A

India ink stain

23
Q

C. neoformans’ teleomorph is ______________ which is a filamentous fungus from class ____________.

A

Filobasidiella neoformans; Tremellomycetes

24
Q

C. Neoformans can be found in?

A

Pigeon excrement

25
Q

Give an example of molds.

A

Aspergillus niger

26
Q

What are the components of MOlds?

A

A. Hyphae
B. Spores
C. Rhizoid

27
Q

This hyphae is a lightly pigmented
This hyphae is highly pigmented due to Melanie

A

Hyaline
Dematiaceous

28
Q

Dematiacious hyphae is also known as?

A

Phaeoid

29
Q

This has no transverse walls and it is multinucleated.

A

Aseptate

30
Q

What is the other name of aseptate?

A

Sparsely hyphae

31
Q

This is a component of mold that is the main reproductive unit of fungi and is usually single cells that is found in fragmentation and has the function for the identification of structure such as the arrangement and shape.

A

Spores

32
Q

This is a small branching hyphae that grows downwards.

A

Rhizoid

33
Q

This assumes to be both yeast and mold form and temperature dependent.

A

Dimorphic fungi

34
Q

Give at least 5 medically important dimorphic fungi.

A
  1. Blastomyces dermatitidis
  2. Coccidioides immitis
  3. Coccidioides posadasii
  4. Paracoccidioides brasiliensis,
  5. Sporothrix schenckii
  6. Penicillium marneffei
  7. Histoplasma capsulatum
35
Q

What is the other term for sexual reproduction?

A

Perfect reproduction

36
Q

Differentiate the ff:
A. Acospores
B. Basidiospores
C. Zygospores

A

a) Acospores: formed in sac (Ascus)

b) Basidospores: Formed externally
(tip of pedestal/ stem).
• Stem (basidium)

c) Zygospores: Single large spore with
thick walls

37
Q

What is the other term for asexual?

A

Imperfect / Fungi imperfecti

38
Q

Asexual reproduction has the formation of __________ following mitosis

A

Conidia

39
Q

This is round and thick walled. The spore detach and form a new hyphae.

A

Chlamydospores

40
Q

This is rectangular, spores detach and form a new hyphae

A

Arthrospores

41
Q

This is are buds that arise from yeast and form pseudohyphae. The bud detached from other spre and produced pseudohyphae.

A

Blastopores

42
Q

This is found inside a sac called __________.

A

Sporangiospores; Sporangium

43
Q

This is found at the tip of stalk.

A

Sporangiophore

44
Q

What do you call the tip of the stalk?

A

Sporangiophore

45
Q

This is found inside the stalk

A

Sporangiospore

46
Q

What is the unique characteristics of fungi?

A

They produce digestive enzymes.

47
Q

This support the reproductive structure of molds.

A

Mycelia/Thallus

48
Q

This is the tube-like structure that forms mycelia.

A

Hyphae

MYCOLOGY (22 decks)

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