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
cilates have___nuclei?
two(macronucleus and micronucleus)
26
what kind of reproduction have alveolates?
sexual reproduction
27
what kind of sexual reproduction?
conjugation
28
what kind of animals are the ciliates?
- animal parasites | - animal symbionts(in the rumen)
29
what are dinoflagellates?
diverse marine and freshwater phototrophic organisms
30
where do dinoflagellates live?
free-living and others live symbiotically with corals
31
dinoflagellates have two different?
insertion points on the cell
32
in dinoflagellates what are the two different points on the cell?
- Transverse flagellum | - longitudinal flagellum
33
are some dinoflagellates toxic?
yes,some species secrete neurotoxins
34
where can dinoflagellates reach very high numbers?
in warm and polluted waters
35
Dense suspensions of dinioflagellates | are called ?
red tides
36
dinoflagellates are associated with?
Humain poisoning (Paralytic shellfish poisoning)
37
for example what kind of accumulation can be toxic for us?
Accumulation of toxic dinoflagellates in mussels
38
Apicomplexans have what kind of life cycle?
Complex life cycle
39
What kind of complex life cycle?
- sporozoite(transmission) - Gametocyte (sexual reproduction) - other stages
40
Alveolates:apicomplexans contain?
apicoplasts
41
Apicomplexans what do they do with chloroplast?
degenerate chloroplast that lack pigments and phototrophic capacity
42
apicomplexans don't have phototrophic capacity but can still?
carry many anabolic pathways
43
Alveolates:Apicomplaxans can cause what diseases?
severe diseases such as malaria,toxoplasmosis and coccidiosis
44
what do we study in Chromalveolata?
Stramenopiles
45
Stramenopiles have?
flagella with many short hairlike extensions
46
stramenopiles are what kind?
Chemoheterotrophs /Phototrophic members
47
what kind of streamenopiles are chemoheterotrophs?
oomycetes
48
what kind of stramenophiles of golden ?
phototrophs
49
how are also called oomycetes?
water molds-filamentour growth
50
what is presence in oomycetes?
coenocytic hyphae
51
in oomycetes the cell walls are made off?
celllulose,not chitin as in fungi
52
a type of oomycetes that causes late blight desease in potatoes and contributed to the Irish potato famine
Phytophtora infestans
53
golden algae are also called?
chrysophytes
54
golden alagae are unicellular or multicellular?
unicellular, some are colonial (form groups)
55
why are they named golden algae?
for their golden-brown color
56
golden algae have their chloroplast pigments dominated by?
carotenoid fucoxanthin