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Eukaryotic Microbes > Eukaryotic Microbes > Flashcards

Eukaryotic Microbes Flashcards

1
Q

Fungi

A
  • Nonphotosynthetic

- Cell wall made up of CHITIN

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2
Q

Mycorrhize

A

-increases surface area for absorption of water and minerals

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3
Q

Yeasts

A

-single cells

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4
Q

Molds

A

-Filamentous

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5
Q

Hyphae/Septate/Aseptate

A

-Septa prevent movement of nuclei and other large structures on molds

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6
Q

Dimorphic

A

-2 forms (yeast/mold) depending on temp

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7
Q

Conidia

A

-Spores free on the ends/tips of fungi

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8
Q

Aspergillus

A
  • Afro spores

- Asexual spores

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9
Q

Penicilluim

A
  • Finger like spores

- Asexual spores

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10
Q

Sporangia

A
  • Enclosed/Capsuled spores

- Asexual spores

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11
Q

Zygospores

A
  • Fusion of nuclei from opposite mating types

- Sexual spores

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12
Q

Fungi life environment

A
  • Grow at a pH 5
  • Resistant to low water environment
  • Grows at a high sugar/salt concentrations
  • Heterotrophic metabolism: requires organic carbon source
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13
Q

Dermatomycoses

A
  • Cutaneous infections

- Like keratin rich areas

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14
Q

Tinea

A

-Ringworm

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15
Q

Tinea Corporis

A

-Ringworm on the body

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16
Q

Tinea Capitis

A

-Ringworm on the head

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17
Q

Tinea Pedis

A

-Ringworm on the foot

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18
Q

Systemic Mycoses

A

-Inhale arthorospores

19
Q

Arthospores

A
  • Very primitive spore type, formed by the breaking up or disarticulation of fungal mycelia
  • Treatment: amphotericin B
20
Q

Coccidioidomycosis

A
  • Coccidioidesimmitis
  • “Valley Fever”
  • Found: Dry alkaline soils
  • Contracted by inhaling arhrospores
  • Lung infection
  • Treatment: amphotericin B
21
Q

Hispoplasmosis

A
  • Ennonsiella (Histoplasma) capsulata
  • “Darling’s Disease
  • Found: Rich, moist soils
  • Inhaling spores
  • Treatment: amphotericin B
22
Q

Blastomycosis

A
  • Cryptococccusneoformans
  • Found: Bird droppings
  • Opportunistic
  • Causes meningitis
23
Q

Candidiasis

A
  • Candida albicans
  • Human flora
  • Opportunistic
24
Q

Protists

A
  • Unicellular
  • Nonphotosyntghesizing
  • Wall-less
25
Q

Reproduction of a protists

A
  • Fission: asexual mitosis
  • Schizogony: multiple nuclei and fragmentation
  • Sexual: gamatocytes
26
Q

Transmission of protists to humans

A
  • Ingestion

- Arthropod vector

27
Q

Life Cycle of a protists

A
  1. Trophozite
  2. Cyst
  3. Definitive host
  4. Intermediate host
28
Q

Trophozite stage

A
  • Active

- Adult feeding

29
Q

Cyst

A
  • Resting state or resistant form

- NOT A REPRODUCTIVE STRUCTURE

30
Q

Definitive host

A

-Houses sexual stage

31
Q

Intermediate host

A

-All asexual stages

32
Q

Amoebae

A

-Move and inquire food through pseudopods (extensions of the cytoplasm)

33
Q

Flagellates

A

-Blood parasites transmitted by biting insects

34
Q

Apicomplexa

A

-Nonmotile, obligate intracellular parasites and pathogens of animals

35
Q

Plasmodium

A
  • Causes: Malaria
  • Transmitted: Mosquito bite
  • Symptoms: Fever and chills
36
Q

Giardia

Giardia lamblia

A

-Causes: Giardiasis
-Transmitted: *cyst are transmitted Oral-fecal route
* trophozites form in small intes. after
ingestion of cyst
-Symptoms: Diarrhea
-2 forms: trophozoites (feeding form) and cyst (dormant)

37
Q

Trichomonas vaginalis

A
  • Causes: trichomoniasis
  • Transmitted: Sexual contact
  • Symptoms: Profuse vaginal discharge
38
Q

Tryponasomes

Trypanosoma cruzii

A
  • Causes: Chagas disease (South American sleeping sickness)
  • Transmitted: Kissing bug feces,
  • Symptoms: Anemia, lethargy, heart & brain damage
  • Parasite outside the RBC
39
Q

Tryponasomes

Trypanosoma brucei

A
  • Causes: African sleeping sickness
  • Transmitted: Tse Tse Fly
  • Symptoms: Anemia, lethargy, heart & brain damage
  • Parasite outside the RBC
40
Q

Entamoeba hystolyctica

A
  • Causes: Amoebic dysentery
  • Transmitted: Food/water contaminated with human waste in form of cyst
  • Symptoms: Severe diarrhea, bloody stools
  • Cyst & trophozoites
41
Q

Helminths

A
  • Multicellular

- Parasites

42
Q

The two types of phyla

A
  1. Platyhelminths: flatworms

2. Nematodes: roundworms

43
Q

The two types of helminths

A
  1. Platyhelminths

2. Ne

Eukaryotic Microbes (1 decks)

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