suite taxonomy eukaryotes Flashcards

1
Q

Parabasalids: Trichomonas vaginalis STI in humans?

A

most common parasitic infection in developed countries.

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2
Q

can Parabasalids:trichonmonas vaginalis from cyst?

A

No they can’t they don’t survive well outside the host (adapted to sexual transmission)

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3
Q

what are Euglenozoans?

A

unicellular

flagellated eukaryotes

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4
Q

type of euglenozoans?

A
  • Kinetoplastids

- Euglenids

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5
Q

kinetoplastids are named for the presence?

A

kinetoplast, a mass of circular DNA
present in their single, large
mitochondrion

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6
Q

kinetoplastids live primarily in?

A

aquatic habitats feeding on bacteria

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7
Q

can some species cause serious diseases in humans?

A

yes

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8
Q

Kinetoplastids: Trypanosoma brucei cause?

A

African sleeping sickness, a

chronic and usually fatal infection

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9
Q

Kinetoplastids: Trypanosoma brucei where do they live?

A

-Lives and grows in the bloodstream,
infects the central nervous system
during the later stage

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10
Q

Kinetoplastids: Trypanosoma are transmitted by?

A

the tsetse fly.

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11
Q

the single flagellum of Kinetoplastids: Trypanosoma is enclosed in?

A

membrane flap

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12
Q

Euglenids are?

A

Nonpathogenic and phototrophic

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13
Q

euglenids contain?

A

-chloroplasts

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14
Q

can euglenids exist as heterotrophs?

A

yes, will lose their chloroplast if incubated in the dark for a long time

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15
Q

euglenids can feed on?

A

bacteria by phagocytosis

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16
Q

sous group we are going to study in alveolata

A
  • ciliates
  • Dinoflagellates
  • Apicomplexans
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17
Q

Alveolates are characterized

by the presence of?

A

alveoli

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18
Q

alveoli?

A

sacs underneath the cytoplasmic membrane

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19
Q

alveoles are for?

A

-function to help cells maintain osmotic balance

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20
Q

in paramecium how are the vacuole?

A

contractile vacuole

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21
Q

in alveolates members are?

A

ciliates,dinoflagellates and apicomplexans

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22
Q

what do alveolates posses at some stage of their life?

A

cilia

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23
Q

what is the most widely distributed genera of alevolates?

A

paramecium

24
Q

alveolates use cialiates for?

A

for motility and to obtain food

25
Q

cilates have___nuclei?

A

two(macronucleus and micronucleus)

26
Q

what kind of reproduction have alveolates?

A

sexual reproduction

27
Q

what kind of sexual reproduction?

A

conjugation

28
Q

what kind of animals are the ciliates?

A
  • animal parasites

- animal symbionts(in the rumen)

29
Q

what are dinoflagellates?

A

diverse marine and freshwater phototrophic organisms

30
Q

where do dinoflagellates live?

A

free-living and others live symbiotically with corals

31
Q

dinoflagellates have two different?

A

insertion points on the cell

32
Q

in dinoflagellates what are the two different points on the cell?

A
  • Transverse flagellum

- longitudinal flagellum

33
Q

are some dinoflagellates toxic?

A

yes,some species secrete neurotoxins

34
Q

where can dinoflagellates reach very high numbers?

A

in warm and polluted waters

35
Q

Dense suspensions of dinioflagellates

are called ?

A

red tides

36
Q

dinoflagellates are associated with?

A

Humain poisoning (Paralytic shellfish poisoning)

37
Q

for example what kind of accumulation can be toxic for us?

A

Accumulation of toxic dinoflagellates in mussels

38
Q

Apicomplexans have what kind of life cycle?

A

Complex life cycle

39
Q

What kind of complex life cycle?

A
  • sporozoite(transmission)
  • Gametocyte (sexual reproduction)
  • other stages
40
Q

Alveolates:apicomplexans contain?

A

apicoplasts

41
Q

Apicomplexans what do they do with chloroplast?

A

degenerate chloroplast that lack pigments and phototrophic capacity

42
Q

apicomplexans don’t have phototrophic capacity but can still?

A

carry many anabolic pathways

43
Q

Alveolates:Apicomplaxans can cause what diseases?

A

severe diseases such as malaria,toxoplasmosis and coccidiosis

44
Q

what do we study in Chromalveolata?

A

Stramenopiles

45
Q

Stramenopiles have?

A

flagella with many short hairlike extensions

46
Q

stramenopiles are what kind?

A

Chemoheterotrophs /Phototrophic members

47
Q

what kind of streamenopiles are chemoheterotrophs?

A

oomycetes

48
Q

what kind of stramenophiles of golden ?

A

phototrophs

49
Q

how are also called oomycetes?

A

water molds-filamentour growth

50
Q

what is presence in oomycetes?

A

coenocytic hyphae

51
Q

in oomycetes the cell walls are made off?

A

celllulose,not chitin as in fungi

52
Q

a type of oomycetes that causes late blight desease in potatoes and contributed to the Irish potato famine

A

Phytophtora infestans

53
Q

golden algae are also called?

A

chrysophytes

54
Q

golden alagae are unicellular or multicellular?

A

unicellular, some are colonial (form groups)

55
Q

why are they named golden algae?

A

for their golden-brown color

56
Q

golden algae have their chloroplast pigments dominated by?

A

carotenoid fucoxanthin