Protists Flashcards

0
Q

2 facts about SUPERgroups?

A
  • Unranked term

- Broader than kingdom

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1
Q

What are the 5 SUPERgroups of Protists?

A
  • Excavata
  • Chromalveolata
  • Rhizaria
  • Archaeplastida
  • Unikonta
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2
Q

How did Protist lineages used to be divided?

A

Kingdom Protista

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3
Q

Is Kingdom Protista monophyletic, paraphyletic, or polyphyletic?

A

Polyphyletic

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4
Q

Protists exhibit more ______ and _______ diversity than any other group of _______.

A

Structural
Functional
Eukaryotes

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5
Q

All the trophs Protists can be?

A

Autotrophs
Heterotrophs
Saphrotrophs

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6
Q

Saphprotrophs

A

Eat non living organic matter

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7
Q

How complex is a single celled protist?

A

Can do things that a multicellular eukaryote can do.

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8
Q

How do Protists reproduce?

A
  • Sexual

- Asexual

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9
Q

True or False? All Protists are unicellular

A

False

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10
Q

True or False? Some Protists are parasitic?

A

True

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11
Q

Name 3 types of parasitic Protists.

A

Pfesteria shumwayee, a dinoflagellate that cause fish kills

Phytophtora ramorum cause sudden oak death

Parabasalid in stomach of termites that help them break down wood

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12
Q

Key role of Protists?

A

Zooxanthellae that use sun to get energy and live inside of coral reefs

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13
Q

2 facts about Photosynthetic Protists?

A

Limited by nutrients

Eutrophication

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14
Q

Phytoplankton

A

Drifting around in water and produce their own energy

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15
Q

Eutrophication

A

Nutrients like phosphorus and nitrogen become highly concentrated in water. Leading to increased growth of algae or Cyanobacteria.

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16
Q

Secondary Endosymbiosis

A

Red and green algae were ingested into eukaryotes and became symbionts themselves
Usually have 4 membranes

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17
Q

SUPERgroup Excavata (2 facts)

A
  • “Excavated” feeding grove

- Different cytoskeleton

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18
Q

3 Protists in SUPERgroup Excavata

A
  • Diplomonads
  • Parabasalids
  • Euglenozoans
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19
Q

Diplomonads (3 facts)

1 parasite example

A
  • Modified mitochondria
  • Multiple flagella
  • Unique cytoskeleton
  • Giardia intestinalis cause upset stomach
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20
Q

Parabasalids (2 facts)

1 example

A
  • Modified mitochondria
  • Anaerobic
  • Trichomonas Vaginalis-sexually transmitted disease that infect the vagina
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21
Q

Euglenozoans
2 facts, “trophs”
(2 groups)

A

Crystalline structure inside each flagella

Autotrophs
Heterotrophs
Photosynthetic autotrophs

Kinetoplastids
Euglenids

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22
Q

Kinetoplastids (3 facts)

1 example

A

Large mitichondrion
Large mass of DNA
Can change their protein coat

Trypanosoma
infect humans by Chagas’ disease
African sleeping sickness from bite by Tsetse fly

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23
Q

Euglenid (2 facts)

1 example

A

Pocket at one end of the cell where 1-2 flagellas emerge
Mixotrophs

Euglena found in pond water, light

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24
Mixotroph
Autotrophic | Heterotrophic
25
Chromalveolates (1 fact)
Went through secondary endosymbiosis
26
7 Protists in Supergroup Chromalveolata?
``` Dinoflagellates Apicomplexans Ciliates Diatoms Golden Algae Brown Algae Oomycetes ```
27
2 main groups, subs of Chromalveolata?
- Alveolates | - Stramenophiles
28
Alveoli
Membrane sacs
29
Alveolates three subgroups?
Dinoflagellates Apicomplexans Ciliates
30
Dinoflagellates (2 facts) (2 examples)
2 flagella in between thick cellulose plates Mainly phytoplankton Karenvia brevis- toxins that kill invertebrates and fishes California's fluorescent tides caused earaches
31
Apicomplexhans 2 facts (1 example)
Use apex to penetrate host cells and tissues Require 2 or more host species for completion Parasites of animals Plasmodia- parasite that causes malaria, live in Mosquitos and humans
32
Ciliates Conjugation
Use of cilia or short flagella to move and feed Have tiny micronuclei and large micronuclei Genetic variation results from conjugation Conjugation- sexual process where 2 individuals exchange haploid micronuclei but don't reproduce Reproduce by binary fission
33
Stramenopiles (Straw Hair) | 2 facts
Flagella have hairlike projections | Most have hairy flagellum paired with smooth flagellum
34
Four groups of stramenophiles?
Diatoms Golden Algae Brown Algae Oomycetes
35
Diatoms (4 facts)
Unicellular algae with cell walls made of silica Very strong Heavy Major component of phytoplankton
36
Conjugation
2 individuals exchange haploid micronuclei
37
(Chromalveolata) Alveolates | Example?
Thick cellulose plates to protect themselves Have flagella Dinoflagellates
38
Karenvia brevis= Brevotoxin
Can kill birds and animals | California's fluorescent tides cause tides to glow at night
39
(Chromalveolata) Stramenophiles means....
Straw Hair
40
Stramenophiles
Acquatic | Flagella will have smooth flagella or hairy flagella
41
(Stramenopiles) Brown Algae | Example?
``` Kelp Blade Stripe holdfast Multicellular Grow tall Found in ocean Go through photosynthesis ```
42
(Stramenopiles) Oomycetes | Example?
``` Water molds White rusts Downy mildews Parasites Ich on fish Oak trees Once considered fungi Filaments that branch off their bodies Potato Blight caused Phytophthora infectans ```
43
Supergroup Rhizaria | 3 groups?
Diverse group of Protists Forams Radiolarian Cercozoans
44
(Rhizaria) Forams
Tough shell made calcium carbonate Make them heavy Benthic-live on bottom
45
(Rhizaria) Radiolarian
Have pseudopodos that are thread like | Heterptroph
46
(Rhizaria) Cercozoans
Acquire different Cyanobacteria for endosymbiosis | Heterotrophs
47
4 Phylums in Supergroup Archaeplastida
Red algae Green algae Chlorophytes Charophytes
48
Where did red algae come from?
Primary Endocytosis
49
What descended from green algae?
Land plants
50
(Archaeplastida) Red Algae (2 facts) | 2 examples
Go through photosynthesis Have phycoerythrin Nori-used in sushi wrapping Bonnemaisonia hamifera
51
Phycoerythrin
Accessory pigment that absorb light and helps bounce back additional red light.
52
(Archaeaplastida) Red Algae Charophytes, Cladophora, or Pediastrum
No phycoerythrin Rely on chloroplasts Carophytes
53
Chlorophytes (3 facts) | 2 examples
Mostly found in water Some live in snow Small but can appear bigger if colonial Caulerpa-giant cell with lots of nuclei Ulva
54
Lichen
have to be half fungi and half Cyanobacteria or Chlorophyte algae
55
3 different types of Charophytes
Volvox Cladophora Pediastrum
56
``` Supergroup Unikonta (2 facts) (2 groups) ```
Have fatter pseudopods Animal, fungi, some Protists Amoebozoans Opisthokonts
57
Types of Amoebozoans
Slime molds Gym amoebas Entamoebas
58
( Unikonta, Amoebozoans) | Acanthoeba
``` Single cell Feed on yeast or bacteria Can live without a host Enter through skin or nose Everywhere in common environment Deadly Eat your brain ```
59
(Unikonta) Opisthokonts (2 facts) | 2 types
Animals Fungi Several Groups of Protists - Nucleariids - Choanoflagellates
60
(Stramenophiles) Golden Algae (1 example)
Yellow and brown carotenoids 2 flagellas Dinobyron
61
Amoebas
Used to be Protists that move by pseudopia
62
Rhizaria
Threadlike pseudopodia
63
``` Green Algae (1 example) (2 groups) ```
Green chloroplasts Charophytes Chlorophytes