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Microbiology Lab Practicum 1 > Fungi > Flashcards

Fungi Flashcards

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Biology 101 flashcards
1
Q

Are yeasts and molds prokaryotes or eukaryotes?

A

eukaryotes

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2
Q

What are yeasts and molds way of nutrition?

A

heterotrophic and some are saprophytic

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3
Q

What does heterotrophic mean?

A

must absorb carbon from environment (organic)

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4
Q

What does saprophytic mean?

A

obtain nutrients from dead, organic matter

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5
Q

Some fungi are _____.

A

pathogenic (mycoses)

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6
Q

What is the cell wall of yeasts and fungi made of?

A

chitin

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7
Q

What kind of environment do yeasts and fungi prefer?

A

low pH, high sugar concentration

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8
Q

What kind of nutrient medium is used to culture yeast and fungi?

A

Sabouraud Dextrose Agar

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9
Q

What are the characteristics of Sabouraud Dextrose Agar?

A

contains peptone, glucose and a low pH. (inhibits bacterial growth)

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10
Q

What are the three characteristics of yeast?

A
  1. unicellular 2. round (ovoid) 3. asexual reproduction (budding)
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11
Q

What are the three characteristics of mold?

A
  1. multicellular 2. filamentous-hyphae 3. sexual and asexual reproduction
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12
Q

What characteristic to yeast and mold share?

A

they are dimorphic

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13
Q

What does dimorphic mean?

A

They can switch forms due to environment

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14
Q

What is an example of a dimorphic microorganism?

A

Candida albacins

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15
Q

How is hyphae classified?

A

by function

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16
Q

What is vegetative hyphae?

A

grow laterally or underneath (rhizoid), absorb nutrients

17
Q

What are reproductive hyphae?

A

grow vertically and give rise to spores

18
Q

Hyphae can be ______ or _____.

A

septated or non-septated

19
Q

What does septated mean?

A

hyphae are divided into compartments

20
Q

What is the term for several hyphae?

A

mycelium

21
Q

What are sporangiospores?

A

spores formed in a sac called a sporangium

22
Q

What are conidiospores?

A

free spores not enclosed in a sac

23
Q

What are the two types of asexual spores?

A

sporangiospores and conidiospores

24
Q

What are the three types of sexual spores?

A
  1. ascospores 2. blastospores 3. zygospores
25
Q

What are ascospores?

A

spores produced inside an ascos (tube-like sac)

26
Q

What are blastospores?

A

spors produced by budding

27
Q

What are zygospores?

A

spores formed by mating

28
Q

When dying yeasts/fungus/molds what dye is used?

A

Lactophenol Cotton Blue

29
Q

Name this fungus

A

Aspergillus ochraceus

30
Q

Name this organsim

A

Pencillium notatum

31
Q

Name this Organism

A

Rhizopus stolonifer

32
Q

Name this Organism

A

Trichothecium roseum

33
Q

Name this organism

A

Saccromyces cerevisae

34
Q

Name circled characteristic

A

Zygospore

35
Q

name taillike structure on organism

A

flagella

36
Q

What is the shape of this organism?

A

Spirochete

Microbiology Lab Practicum 1 (15 decks)

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