Term
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Definition
Supergroup
Have similar cytoskeletal elements.
Posses modified mitochondria.
Three Groups:
Diplomonads
Parabasalids
Euglenozoans |
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Term
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Definition
Excavata Have non-functional mitochondria (Mitosomes). Posses two nuclei and multiple flagella.
Giardia lamblia |
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Term
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Definition
Excavata Mitochondria cannot use oxygen (hydrogenosomes).
Trichomonas vaginalis |
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Term
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Definition
Excavata
Flagella have internal spiral rods.
Two groups:
Kinetoplastids
Euglenids |
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Term
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Definition
Excavata > Euglenozoans Mitochondria contain a mass of DNA known as a kinetoplast.
Trypanosomes |
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Term
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Definition
Excavata > Euglenozoans Mixotrophic, with one or two flagella arising in terminal pocket.
Euglena |
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Term
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Definition
Supergroup
Monophyletic, originating from endosymbiosis of a red algal cell.
Two groups:
Alveolates
Stramenopiles |
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Term
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Definition
Chromalveolates
Have spaces beneath their plasma membrane.
Three Groups:
Dinoflagellates
Apicomplexans
Ciliates |
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Term
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Definition
Chromalveolates > Alveolates
Causes red tide.
Covered in a series of plates that are made up of cellulose (acts as armor). |
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Term
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Definition
Chromalveolates > Alveolates
Are parasitic and include Plasmodium.
Possess Apicoplasts. |
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Term
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Definition
Chromalveolates > Alveolates Use cilia for locomotion and have two unequal nuclei (one large, one small).
Paramecium |
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Term
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Definition
| When Ciliates swap their micronuclei. |
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Term
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Definition
Chromalveolates
Possess flagellum with hair-like branches.
Four groups:
Diatoms
Golden Algae
Brown Algae
Oomycetes |
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Term
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Definition
Chromalveolates > Stamenopiles
Marine and fresh-water.
Have a silica (glass) cell wall.
Bottom of the ocean food chain. |
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Term
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Definition
Chromalveolates > Stamenopiles
Contain yellow/brown pigments.
Some mixotrophic members.
Most unicellular, some colonial.
Can form cysts. |
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Term
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Definition
Chromalveolates > Stamenopiles
Most are multicellular with complex structure.
Composed of: holdfast > stalk (snipe)> float > photosynthetic leaves. |
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Term
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Definition
| Sporophyte and Gametophyte have similar appearance. |
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Term
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Definition
| Sporophyte and Gametophyte have very different appearance. |
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Term
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Definition
Chromalveolates > Stamenopiles
Once classified as fungi since they have similar appearance and life cycles. Have a cellulose cell wall (fungi cell walls are made of chitin). |
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Term
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Definition
Supergroup
Monophyletic (based on DNA analysis).
Two groups:
Foraminiferans
Radiolarians. |
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Term
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Definition
Rhizaria
Shell (TEST) is made of calcium carbonate.
Extend pseudopodia through pores. |
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Term
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Definition
Rhizaria
Internal skeletal structure of silica.
Extend thread-like psuedopodia. |
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Term
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Definition
Supergroup
Three groups:
Red Algae
Green Algae
Higher Plants |
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Term
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Definition
Archaeplastida
Contain phycoerythrin.
Utilize blue and green light.
Deep ocean habitat.
Alternation of Generations is common.
No flagellated stage. |
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Term
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Definition
Archaeplastida
Contain chloroplasts with chlorophyll.
Two groups:
Chlorophytes
Charophyceans |
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Term
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Definition
Archaeplastida > Green Algae
Are mostly fresh water with some marine members. Range from single cells to colonial. |
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Term
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Definition
Archaeplastida > Green Algae
Are multicellular and only live in fresh water. Closest relative to land plants. |
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Term
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Definition
| Multi-nucleus cells created by cell fusion. |
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Term
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Definition
Supergroup
Group that contains Some protists, the fungi, and the animals. |
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Term
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Definition
Unikonta
The protists within Unikonta.
Three Groups:
Mycetozoans
Gymnamoebas
Entamoebas |
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Term
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Definition
Unikonta > Amoebozoans
Contain plasmodial slime molds (cells are fused together) and cellular slime molds (cells only fuse together when conditions are poor). |
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Term
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Definition
Unikonta > Amoebozoans
Common in soil, freash-water & marine habitats.Predators or scavengers |
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Term
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Definition
Unikonta > Amoebozoans Most free living, some parasitic. Six species are parasitic to man.
Entamoeba histolytica |
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Term
| Ecological Roles of Protists |
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Definition
Many act as producers or decomposers.
Are a food source for other organisms.
Form mutual and parasitic symbiotic relationships with other organisms. |
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