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AA-BioSci 1223 (S&T) > Protist Email > Flashcards

Flashcards in Protist Email Deck (39):
1

Name the four supergroups of eukaryotes

Excavata, "SAR" Clade, Archaeplastida, Unikonta

2

What is the key characteristic of Excavata?

Cytoskeleton and excavated feeding groove

3

What is the key characteristic of Diplomonads/Parabasalids?

Modified mitochondria

4

What is the key characteristic of Euglenozoans?

Spiral or crystalline rod inside flagella

5

What is the key characteristic of Stramenopiles?

Hairy and smooth flagella

6

What is the key characteristic of Alveolates?

Membrane-enclosed sacs beneath plasma membrane

7

What is the key characteristic of Rhizarians?

Amoebas with threadlike pseudopodia

8

What is the key characteristic of Red algae?

Phycoerythrin

9

What is the key characteristic of Green algae?

Plant-type chloroplasts

10

What is the key characteristic of Amoebozoans?

Amoebas with lobe-shaped or tube-shaped pseudopodia

11

What are some members of Opisthokonts?

Animals, Fungi, and several groups of protists

12

(Eukaryotes) Give a super/major group and description for Giardia

Excavata, Diplomonads/Parabasalids

Parasite transmitted by feces in water

13

(Eukaryotes) Give a super/major group and description for Dictoyostelium discoideum

Unikonta, Amoebozoans

A cellular slime mold used to study multicellularity

14

(Eukaryotes) Give a super/major group and description for Paramecium

"SAR" Clade, Alveolates

Use cilia to feed and move, large and small nuclei, conjugation gives genetic variation

15

(Eukaryotes) Give a super/major group for Nori

Archaeplastida, Red Algae

16

(Eukaryotes) Give a super/major group and description for Globigerina

"SAR" Clade, rhizarians

Foram, has a porous, multi-chambered calcium carbonate shell called a test, through which pseudopodia extend

17

(Eukaryotes) Give a super/major group and description for Kelp

"SAR" Clade, Stramenopiles

A type of brown algae that lives in the deep ocean and has a holdfast, a stipe, and blades

18

(Eukaryotes) Give a super/major group and description for Trypanosoma

Excavata, Euglenozoans

A kintoplastid that causes sleeping sickness or Chaga's disease. They evade immune responses by switching surface proteins.

19

(Eukaryotes) Give a super/major group and description for Plasmodium

"SAR" Clade, Alveolates

A apicomplexan that causes malaria and requires both mosquitoes and humans for its life cycle. It is spread by sporozoites and its apex has special organelles for penetrating cells/tissues.

20

(Eukaryotes) Give a super/major group for Ulva and Volvox

Archaeplastida, Green Algae

21

(Eukaryotes) Give a super/major group and description for Entamoeba histolytica

Unikonta, Amoeboaoans

Causes amoebic dysentery

22

(Eukaryotes) Give a super/major group and description for Trichomonas vaginalis

Excavata, Diplomonads/Parabasalids

Causes yeast infections

23

(Eukaryotes) Give a super/major group and description for Diatoms

"SAR" Clade, Stramenopiles

Unicellular algae with a silicon wall

24

(Eukaryotes) Give a super/major group and description for Amoeba

Unikonta, Amoebozoans

Use pseudopodia and cytoplasmic streaming to create phagocytosis

25

(Eukaryotes) Give a super/major group and description for Pfiesteria

"SAR" Clade, Alveolates

A dinoflagellate that has two flagella, cellulose plates, and causes red tides

26

(Eukaryotes) Give a super/major group for Euglena

Excavata, Euglenozoans

27

(Eukaryotes) Give a super/major group for Phytophthora

"SAR" Clade, Stramenopiles

28

(Eukaryotes) Give a super/major group for Laminaria

"SAR" Clade, Stramenopiles

29

(Eukaryotes) Give a super/major group for Porphyra

Archaeplastida, Red Algae

30

(Eukaryotes) Give a super/major group for Chlamydomonas

Archaeplastida, Green Algae

31

(Eukaryotes) Give a super/major group for Nucleariids

Unikonta, Opisthokonts

32

Give some examples of the ecological and human significance of protists

Symbionts, Parasites (humans, animals, plants), Producers, Food Chain

33

Give some reasons why protists are a polyphyletic group

Many lineages, no common ancestor, very diverse

34

Describe the life-cycle of Plasmodium

Sporozoites (mosquito) -> Merozoites (via liver) -> Gametocytes (via red blood cells) -> 2n Zygote (via mosquito/fertilization) -> Oocyst -> sporozoites

35

Describe plasmodial slime molds

form mass called a plasmodium that is does not have plasma membranes, but instead has many diploid nuclei. They have pseudopodia and use phagocytosis.

36

Describe cellular slime molds

feed individually but can aggregate to migrate/form a fruiting body

37

What are the three types of weird cell walls? What organisms are they in?

Cellulose- dinoflagellates

Silicon-Diatoms

CaCO3-Forams

38

(Eukaryotes) Give a super/major group and description for pink or watermelon snow

Archaeplastida, green algae

39

(Eukaryotes) Give a super/major group and description for "some are bioluminescent"

SAR clade, Alveolates