Protists Flashcards

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1
Q

protista

A

kingdom of mostly unicellular eukaryotes

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2
Q

three types of protists

A

unicellular, colonial, multicellular

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3
Q

methods of reproduction for protists

A

sexually, asexually, syngamy

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4
Q

syngamy

A

meiosis and fertilization

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5
Q

nutritional diversity of protists

A

photoautotrophs, heterotrophs, mixotrophs

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6
Q

mixotrophs

A

combine photosynthesis and heterotrophic nutrition

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7
Q

algae

A

unicerllular or filamentous photoautotrophs; mostly aquatic

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8
Q

thallus of algae

A

body of multicellyular algae

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9
Q

multicellular algaes

A

brown, red, greeen, yellow

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10
Q

thallus of algae consists of

A

holdfast, stipe, blade

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11
Q

all algae reproduce

A

asexually

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12
Q

multicellular algae can reproduce

A

sexually via alteration of generations and can fragment

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13
Q

Chlamydomonas

A

unicellular green algae, bi flagellate, has eyespot

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14
Q

brown algae

A

cellulose and alginic acid cell walls, multicellular and macroscopic

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15
Q

algin

A

substance produced by brown algae; used as food thickener

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16
Q

pneumocyst

A

pocket filled with gas to help brown algae float

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17
Q

red algae

A

have branched thalli, most are multicellular

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18
Q

red algae harvested for

A

agar and carrageenan, some produce a lethal toxin

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19
Q

green algae

A

cellulose cell wall, uni or multicellular, chlorophyll a and b - thought to be evolutionary link to land plants

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20
Q

diatoms

A

pectin and silica cell walls, unicellular or filamentous, store oil

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21
Q

diatoms produce

A

domoic acid which can cause neurological disease

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22
Q

dinflagellates

A

cellulose plasma membrane, unicelluylar

23
Q

dinoflagellates produce

A

neurotoxins (saxotoxins) that cause paralytic shellfish poisoning

24
Q

oomycota

A

water molds, cellulose cell wall, chemoheterotrophic, zoospore, decomposers

25
Q

phytophthora infestans

A

caused irish potato famine

26
Q

phytophthora cinnamoni

A

infects eucalyptus

27
Q

phytophthora ramorum

A

causes sudden oak death

28
Q

roles of algae in nature

A

fix CO2, produce 80% of earth’s oxygen

oil production, symbionts, algal blooms

29
Q

zoonosis

A

something that will come from animals (zoonotic infection can transfer animal to animal

30
Q

protozoa

A

unicellular eukaryotes found in water and soil

31
Q

trophozoite

A

feeding and growing form of protozoa

32
Q

reproduction of protozoa

A

asexual: fission budding or schizogamy
sexual: conjugation

33
Q

schizogamy

A

multiple fission

34
Q

paramecium

A

has macro and micro nuclei, slipper shape

35
Q

pellicle

A

outer protective coat requiring special structures to take in foodl

36
Q

excavata 3 types

A

diplomonads, parabasalids, and euglenozoa

37
Q

diplomonads

A

no mitochondria, multiple flagella (giardia)

38
Q

parabasalids

A

undulating membrane, no cyst shape

39
Q

euglenozoa

A

photoautotrophs or facultative chemotrophs

40
Q

hemoflagellates

A

transmitted by blood feeding insect bites

41
Q

amebae

A

move by pseudopod

42
Q

entamebae hystolytica

A

causes amebic dystentary

43
Q

acanthamoeba

A

infects cornesas and causes blindness

44
Q

balamuthia

A

granulomatous amebic encephalitis

45
Q

apicomplexa

A

nonmotile, obligate intracellular parasites

46
Q

toxoplasma gondii

A

transmitted by cats, causes fetal infections

47
Q

cryptosporidium

A

transmitted via feces, cauyses waterborne illness

48
Q

plasmodium

A

causes malaria, sexually reproduces in Anopheles mosquito - injects sporozoite in bite - undergoes schizogony in liver, merozoites are produced

49
Q

merozoites infect

A

red blood cells, form ring stage inside, RBCs reupture

50
Q

ciliates

A

moce by cilia arranged in precise rows

51
Q

Balantidium coli

A

onlly human parasite - dysentary

52
Q

cellular slime molds

A

represent ameba, phagocytisize fungi and bacteria; cells aggregate to form stalks and spore caps that differentiate into spores

53
Q

plasmodial slime molds

A

mass or protoplasm with multinuclei; move as giant ameba; has cuytoplasmic streaming

54
Q

cytoplasmic streaming

A

protoplasm moves and changes speed/direction to distribute oxygen and nutrients