lab 3 Flashcards

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1
Q

What is characteristic 1 of kingdom protista?

A

eukaryotic- all protist have a nucleus (some have more than one)

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2
Q

what is characteristic 2 of kingdom protista?

A

unicellular-made up of one cell (kelp and algae are exceptions)

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3
Q

what is characteristic 3 of kingdom protista?

A

means of locomotion-many are able to move

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4
Q

what do protist use to move?

A

1.flagella-tail like whip
2.cilia-hair like structure
3.psuedopods-false feet

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5
Q

what is characteristic 4 of kingdom protista?

A

classified by niche

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6
Q

what are the niches of characteristic 4 of kingdom protista?

A

1.producer
2.consumer
3.decomposer

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7
Q

what are the supergroups of kingdom protista?

A

1.excavata
2. SAR
3. Archaeplastida
4.Unikonta

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8
Q

some kingdom protista are heterotrophic T or F?

A

T

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9
Q

some kingdom protista are autotrophic T or F?

A

T

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10
Q

how do protista reproduce?

A

asexually and sexually

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11
Q

some protista are simple multicellular T or F?

A

T

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12
Q

what separates protists from bacteria?

A

having a nucleus surrounded by nuclear membrane

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13
Q

what are the 4 main SUBgroups of SUPERgroup excavata?

A

1.euglenids
2.diplomonads
3.kinetoplastids
4.parabasalids

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14
Q

what is supergroup excavata named for?

A

named for its deep grooves in cytoskeleton that appear to be excavated

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15
Q

why is supergroup excavata atypical?

A

mitochondria are absent or aytpical

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16
Q

how is supergroup excavata grouped?

A

grouped based on their appearance of cytoskeletons

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17
Q

what is an example in the SUBgroup euglenids of the SUPERgroup excavata?

A

euglena

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18
Q

where do euglena live?

A

primarily in freshwater, but important in marine environments

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19
Q

are euglena heterotrophic or autotrophic?

A

heterotrophic

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20
Q

what is a pellicle?

A

a distinctive cell wall composed of spiral strips in euglena

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21
Q

what is an eyespot?

A

a spot on euglena that is sensitive to light

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22
Q

what is an example in the SUBgroup kinetoplastids of the SUPERgroup Excavata?

A

trypanosoma

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23
Q

how is trypanosoma passed to humans?

A

passed from the tsetse fly

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24
Q

what disease does tstse flys cause?

A

african sleeping disease

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25
Q

how does trypanosoma escape humans defenses?

A

trypanosomas alter their molecular structure frequently

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26
Q

what is trypanosoma’s 1 singular organelle?

A

single large mitochondria- contains an organized mass of DNA called Kinetoplast(posterior) and a nucleus (center)

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27
Q

how are trypanosomas living?

A

free living, symbiotic or parasitic

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28
Q

what does supergroups SAR stand for?

A

1.stramenopiles
2.alveolates
3.rhizarians

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29
Q

metabolically what does supergroup SAR include?

A

chemoheterotrophs, photoautotrophs, mixotrophs

30
Q

what are chemoheterotrophs?

A

an organism that derives its energy from chemicals and needs to eat other organisms in order to live

31
Q

what are photoautrotrophs?

A

photosynthetic organism

32
Q

what are mixotrophs?

A

organisms that are both chemoheterotrophs and photoautrotrophs

33
Q

what supergroup has some of the most important photosynthetic organisms on earth?

A

supergroup SAR

34
Q

What are dinoflagellates covered with?

A

cellulose plates

35
Q

what is an example of an Alveolate in the supergroup SAR

A

dinoflagellate

36
Q

what is the pigment dinoflagellates have and its color?

A

fucoxanthin and it has yellow-brown pigment

37
Q

what do dinoflagellates cells contain?

A

cells contain fucoxanthin pigment and chloroplasts

38
Q

what organism produces RED TIDES that kill marine organisms?

A

dinoflagellates

39
Q

what supergroup is paramecium apart of in the supergroup SAR?

A

alveolates

40
Q

what subgroup is stentor apart of in the supergroup SAR?

A

alveolates

41
Q

what supergroup is plasmodium apart of in the supergroup SAR?

A

alveolates

42
Q

what kind of nucleus do paramecium have?

A

one macronucleus and at least one micronucleus

43
Q

what does the macronucleus do?

A

participates in the daily activies of growth and reproduction

44
Q

what does the micronucleus do?

A

remains dormant until the cell undergoes a sexual process

45
Q

how are paramecium characterized?

A

by an external covering of hair like cilia

46
Q

what supergroup is stentor apart of in the supergroup SAR?

A

alveolates

47
Q

what is stentor named for?

A

named for its horn-shape

48
Q

how do stentors get food?

A

have cilia around the anterior “bell” that sweep in food and aid in swimming

49
Q

what subgroup is plasmodium (apicomplexa) apart of?

A

alveolates

50
Q

what disease does plasmodia cause?

A

malaria disease

51
Q

how is malaria passed?

A

infective stage is carried by intermediate hosts (mosquitoes)

52
Q

what parts of the human body does the plasmodium organism attack?

A

attacks the liver and red blood cells

53
Q

protist lack any locomotory organelles T or F?

A

T

54
Q

what supergroup do diatoms belong to in the supergroup SAR?

A

stramenopile

55
Q

how are diatoms cell walls?

A

diatoms cell wall has two shells made of silica that overlap and fit together

56
Q

where are diatoms adundant?

A

abundant in plankton and in sediments in marine and freshwater ecosystems

57
Q

why are diatoms important?

A

among the most important aquatic microorganisms today (primary producers)

58
Q

what supergroup does brown algae (phaeophytes) belong to in supergroup SAR

A

stramenopile

59
Q

what is another name for brown algae (phaeophytes)?

A

seaweed

60
Q

what structures do brown algae possess?

A

leaf like blades, stem-like stipes, and anchoring structures called holdfasts

61
Q

what does brown algae bladders provide?

A

provide buoyancy for stipes and blades

62
Q

what supergroup does foraminiferans(foram) belong to in supergroup SAR?

A

rhizaria

63
Q

what were foraminaferans named for?

A

named for porous calcium carbonate shells

64
Q

how does foraminiferans use pseudopodia?

A

psuedopodia extend through the pores and function in swimming, shell formation, and feeding

65
Q

what percent of forams are fossils?

A

90%

66
Q

what members are foraminiferans apart of ?

A

members of plankton

67
Q

what supergroup does radiolarians belong to in supergroup SAR?

A

rhizaria

68
Q

what is actinopoda in radiolarians?

A

ray foot (form a radial pattern)

69
Q

what is pseudopodia in radiolarians called?

A

axopodium

70
Q

how does radiolarians get food?

A

smaller protists and microorganisms stick to the axopodia and are phagocytized(ingested) by a thin layer of cytoplasm

71
Q

what are radiolarians shells made of ?

A

silica

72
Q

Are Brown Algae (phaeophytes) the largest protist and multicellular?

A

yes