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BIOL122 impact of microbes > lecture 5 protists > Flashcards

lecture 5 protists Flashcards

1
Q

protist organelles

A 
nucleus (nucleoid in prkryts)
ribosomes 
ER
Golgi 
Mitochondria
chloroplasts
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2
Q

what does algae refer to

A

MOs that photosynthesis

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3
Q

what are ciliates

A

a form of protists

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4
Q

what are the basic concepts of protists cells

A 
movement
feeding
osmosis
respiration
reproduction
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5
Q

what are cilia

A

organelle
used for movement
attached by a stalk
used for feeding currents

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6
Q

how are cillia used in vorticella

A

feeding currents sucks food into vortex at cell mouth

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7
Q

diversity in protists

A

size is massivley variable

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8
Q

what are the cilia for in ciliate paramecium

A

feeding and movement

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9
Q

what are podophrya

A

each tentacle ends with a cytosome and they have extrusomes

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10
Q

what are extrusomes

A

secretary organelles

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11
Q

how is food ingested in flagellates and amoeba

A 
pseudopodia
cytosome('mouth')
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12
Q

how is food ingested ciliates

A

prey deposited into a food

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13
Q

how is food ingested ciliates

A

prey deposited into a food vacuole

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14
Q

what is a cytoproct

A

cell anus!

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15
Q

hows food digested and consumed

A

food vacuole forms
vacuole becomes acidic
alkalinity restablished
waste material expelled

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16
Q

are all pathogens digested

A

no some hold them in

17
Q

what are the three nutritional modes

A

photoautotroph
heterotroph by ingestion
heterotroph by absorption

18
Q

what are mixotrophic ciliates

A

autotroph and heterotroph

19
Q

what are the two ways autotrophic abilities are acquired

A

organellar mixotrophy

cellular mixotrophy

20
Q

what happens in organellar mixotrophy

A

retain organelle after digesting prey

21
Q

what happens in cellular mixotrophy

A

the ciliates use endosymbiotes

22
Q

how do they reproduces

A

asexually, binary fission

23
Q

how do they sexually reproduce

A 
conjugation
micronulcei swap (micronuclei fusion)

BIOL122 impact of microbes (9 decks)

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