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Organismic Biology Lab > Lab 14 - Unicellular Eukaryotes > Flashcards

Lab 14 - Unicellular Eukaryotes Flashcards

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1
Q

Respiration, osmoregulation, and excretion

A

diffusion via cell membrane
fresh water passively diffuses into cell because the environment is hypotonic

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2
Q

Circulation for unicellular eukaryotes

A

no, there is cytoplasmic streaming tho

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3
Q

How do they digest?

A

engulfs their food via phagocytosis

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4
Q

Sensory

A

no nervous system, some have eyespots to detect light, temp and chemical receptors

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5
Q

Support

A

hydrostatic

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6
Q

pseudopodia

A

literally ‘false foot’, used to move and capture prey

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7
Q

Cilia

A

short, hair-like organelles that beat in wave

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8
Q

Flagella

A

long, whip-like organelles

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9
Q

Reproduction - Mitotic fission

A

Asexual - produces two identical cells

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10
Q

Reproduction - conjugation

A

Sexual - exchange of genetic material

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11
Q

SAR

A

a group - stramenopila, alveolata, rhizaria

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12
Q

There are three phylums in SAR

A

Oomycota, Apicomplexa, ciliophera

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13
Q

Phylum Oomycota

A

Water molds
distinct thalloid-bundle of hyphae
saprobes - ingest dead organic material

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14
Q

Phylum Apicomplexa

A

parasitic, example: malaria

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15
Q

Phylum Ciliophera

A

free-living

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16
Q

Amoebozoa

A

group of phylum myxomycota and phylum dictyosteliomycota

17
Q

Phylum Myxomycota

A

true slime molds
terrestrial or soil environment
sporangium - produces haploid spores through meiosis which form either swarm cells or amoeba
Plasmodium - free-living motile foraging phase
true slime mold plasmodium
lacks cells (coenocytic)
exhibits social behaviour

18
Q

Phylum Dictyosteliomycota

A

cellular slime mold
aquatic, terrestrial, or soil environment
heterotrophic
plasmodium - free-living motile foraging phase
sorocarp - fruiting body

19
Q

Phylum Euglenozoa

A

group excavata
free-living
both autotrophic and heterotrophic

20
Q

How do paramecium move?

A

cilia

21
Q

Plasmodium causes what disease?

A

malaria

22
Q

The pathogen that causes potato blight is in what phylum?

A

oomycota

23
Q

What is the dominant stage in dictyostelium discoideum life cycle?

A

haploid

Organismic Biology Lab (16 decks)

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