12 - Eukaryotes Flashcards

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1
Q

What are the two life forms of fungi?

A
  1. molds
  2. yeasts
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2
Q

Hyphae

A

long filaments of cells found in molds

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3
Q

Mycelium

A

mass of hyphae found in molds

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4
Q

How do yeast reproduce and what do they look like?

A

reproduce via budding/fission and look like cocci bacteria

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5
Q

What describes an organism that can be both mold or yeast?

A

dimorphic

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6
Q

What are the two types of asexual spores, what arrangement are they in?

A
  1. conidiospores: not enclosed - form chains at end of conidiophore
  2. sporangiospores: within a sac (sporangium) at end of sporangiophore hyphae
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7
Q

What are the 3 steps of sexual reproduction in fungi?

A
  1. plasmogamy
  2. karyogamy
  3. meiosis
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8
Q

Plasmogamy

A

2 haploid cells fuse - haploid nucleus of donor (+) penetrates recipient (-) cytoplasm

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9
Q

Karyogamy

A

now 2 nuclei fuse - (+ and -) = diploid nucleus

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10
Q

Meiosis

A

diploid nucleus produces haploid spores

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11
Q

Zygomycota spores produced

A
  1. asexual - sporangiospores
  2. sexual - zygospores
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12
Q

Zygomycota example

A

Rhizopus stolonifera, black bread mold

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13
Q

Ascomycota spores produced

A
  1. asexual: conidiospores
  2. sexual: ascospore
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14
Q

Ascomycota examples

A

Candida albicans

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15
Q

Basidiomycota spores produced

A
  1. asexual: some produce asexual conidiospores but not all
  2. sexual: basidiospores
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16
Q

Basidiomycota examples

A

Cryptococcus neoformans, mushrooms

17
Q

Microsporidia (4 facts)

A
  1. lack mitochondria
  2. obligate intracellular parasites
  3. no sexual reproduction observed
  4. human diseases in AIDs patients
18
Q

What are the two general characteristics of algae?

A
  1. most aquatic
  2. photoautotrophs without tissues
19
Q

What are two pathogenic examples of algae and what do they have?

A
  1. diatoms
  2. dinoflagellates
  • neurotoxins
20
Q

What are the general characteristics of protozoa?

A
  1. unicellular, eukaryotic
  2. live in water and soil
21
Q

Trophozoite

A

feeding and growing stage of protozoa

22
Q

Cyst

A

protective capsule that helps protozoan survive when temperatures are not suitable (parasitic protozoa)

23
Q

Pathogenic protozoan examples:

A
  1. Giardia lamblia
  2. Trichomonas vaginalis
  3. Naegleria fowleri
  4. Cryptosporidium
  5. Trypanosoma brucei
  6. Plasmodium
24
Q

Mycology

A

study of fungi