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suite taxonomy eukaryota Flashcards

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1
Q

diatoms are uni or multi?

A

unicellular, phototrophic

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2
Q

over how many species of diatom do we find?

A

100 000

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3
Q

in what habitats do we find diatoms?

A

Freshwater and marine

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4
Q

diatoms sont entouré par ?

A

frustules

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5
Q

What is a frustules?

A

cell wall made of silica with proteins and polysaccharides attached to it

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6
Q

frustules protect againts?

A

predation

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7
Q

When did diatoms appear?

A

appeared on Earth about 200 million years ago

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8
Q

cercozoans and radiolarians how are they distinguished from other protist?

A

by their threadlike pseudopodia (pseudo=false and podia=feet)

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9
Q

one type of cercozoans?

A

foraminifera

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10
Q

foraminifera are exclusively what kind of organisms?

A

marine

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11
Q

Foraminifera form what kind of ornate?

A

shell-like structures called tests

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12
Q

the test of foraminifera are made of?

A

are made from organic materials reinforced with calcium carbonate

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13
Q

type of Rhizaria?

A
  • Radiolarians

- Foraminiferans

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14
Q

radiolarians are mostly what?

A

marine

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15
Q

What kind of organisms are radiolarians?

A

heterotrophic

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16
Q

test of radiolarians are made of?

A

silica

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17
Q

radiolarians why are they called like that?

A

name is derived from radial symmetry of tests

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18
Q

cercozoans and radiolarians are what kind of cellular?

A

unicellular

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19
Q

what kind of class are we seing in the amoebozoa supergroup?

A
  • Cellular slime molds
  • Plasmodial slime molds
  • Entamoebas
  • Gymnamoeba
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20
Q

amoebozoa are what kind of protists?

A

Terrestrial and aquatic

21
Q

what do amoebozoa use for movement or food?

A

pseudopodia

22
Q

how do amoeboid move?

A

cytoplasmic streaming

23
Q

major groups of amoebozoa?

A
  • gymnamoebas
  • entamoebas
  • slime molds
24
Q

what are gymnamoebas?

A

free-living, inhabit soil and aquatic environments

25
Q

What are entamoebas?

A

parasite of vertebrates and invertebrates

26
Q

slime mold where at the beginning grouped with?

A

fungi

27
Q

why were slime mold grouped with fungi?

A

they have similar life cycle: produce fruiting bodies with spore for dispersal

28
Q

are slime molds motile?

A

yes, they can move across surfaces rapidly

29
Q

what’s the vegetative form of the plasmodial slime mold?

A

masses of protoplasm(cytoplasm,nucleus,organelles) of indefinite size and shape that contain multiple nuclei

30
Q

in plasmodial slime multiple nuclei means?

A

not divided into individual cells

31
Q

From the _____a ____ can form containing ____

A
  • Plasmodium
  • Sporangium
  • multiple haploid spores(dormant,resistant,for dispersal)
32
Q

The spore germinates, yielding a ______(flagellated or amoeboid).The fusion of two _____regenerates the ____plasmodium

A
  • swarmer cell
  • swarmer cell
  • diploid
33
Q

the cellular slime mold is composed of ?

A

vegetative form composed of single amoebae ( haploid )

34
Q

(cellular slime mold) aggregate of separate amoeboid cells from?

A

a pseudoplasmodium(slug)

35
Q

the slug can move as a single?

A

unit (cells do not fuse)

36
Q

after the slug migration what is formed?

A

fruiting body is

37
Q

after the fruiting body?

A

the cell differentiate into spores

38
Q

cellular slime mold under certain conditions it can?

A

may form diploid macrocyst that undergo meiosis to form new amoeba (haploid)

39
Q

cellular slime what kind of reproductino?

A

sexual

40
Q

fungi are what kind of cellular?

A

multicellular

41
Q

fungi form a network of ?

A

hyphae(mycelium)

42
Q

What’s coenocytic?

A

a condition of fungi where cytoplasm and nuclei are subdivided into cells

43
Q

What’s septate?

A

a condition in fungi where nuclei are separated by cross wall

44
Q

hyphae that extend above the surface can?

A

produce asexual spores

45
Q

the hyphae of fungi that can produce asexual spores how are those asexual spores called ?

A

conidia

46
Q

Conidia are often ?

A

pigmented and resistant to drying

47
Q

most fungal cell walls are made of ?

A

Chitin

48
Q

how do fungi eats?

A

by secreting extracellular enzyme that digest complex organic materials( polymers)

49
Q

then what happens with the monomers or polymers ?

A

assimilated

chem (37 decks)

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