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21 Cards in this Set
- Front
- Back
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Diatoms - Division Chyryophyta
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Single celled
Cell walls made of "glass" glass walls enhance photosynthesis "shells" have perforation to exchange substances |
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Brown Algae - Division Phaeophyta
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Not much structure, go with current
Gas pockets all over colonies to help them float up so they can preform photosynthesis Cell wall has added polysaccharides |
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Chromists
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Diatoms
Brown algae Water molds Many different forms living as multicellular colonies |
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Water molds - Division Oomycota
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heterotrophic
filamentous bodies grow in colonies, but not neccesary mobile flagellated bodies Have gametes that can swim |
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Alveolates
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Dinoflagellates
Apicomplexans Ciliates most live as single cells mixed nutrition methods including parasitic |
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Dinoflagellates - Division Pyrrophyta
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Mostly marine
2 flagella, one at end and one around center (equatorial groove) Uni-cellular, don't grow in colonies Most have cellulose wall Responsible for red tides when population growth explodes |
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Apicomplexans(Sporozoans) - Phylum Apicomplexa
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All are parasites with a mobile stage(sporozoite)
Plasmodium - Malaria |
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Ciliates - Phylum Ciliophora
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Most species freshwater
Cilia can cover body, or be in patches Most complex: Oral groove and anal pore as well as two types of nuclei Oral groove is mouth, anal groove is well, anus Macronucleus - day-to-day business Micronucleus - sexual reproduction |
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Amoebozoans
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Amoebas
Acellular Slime Molds Cellular Slime Molds Mainly multicellular colonies heterotrophic move using pseudopodia |
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Sarcodines(ameoba) - Phylum Saromastigophora
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Uses pseudopodia for moving and feeding
Some can be parasitic - amoebic dysentery Some species build shells like snail shells Foraminiferans-make CaCO3 shells for structure and protection |
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Slime molds
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Acellular and Cellular
Two stages: mobile feeding stage, breaking down food and absorbing it from environment. stationary reproductive stage with fruiting body that produces spores Make spore sacs that release spores into environment when sacs are broken |
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Acellular Slime Molds - Division Myxomycota
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A.k.a plasmodial slime molds
name from plasmodium, mobile feeding stage of the organism In mobile stage organism goes through mitosis but not cytokinesis Can undergo cytosis but not telokinesis Results in acellular organism which looks like one big multi-nucleated cell Moves through decaying material engulfing bacteria and food particles In harsh environments forms a mound to produce stalked fruiting body that make haploid spores |
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Cellular Slime Mold - Division Acraisomycota
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two part life cycle where individuals aggregate. colonies get close to multi-cellular behavior
move using pseudopodia |
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Euglenozoans
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Euglenids
Kinetoplastids distinctive mitochondria move via flagella |
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Euglenoids - Division Euglenophyta
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can act like animal or plant
Mostly freshwater, 1-3 flagella Primarily photosynthetic, but can be heterotrophic No cell wall so it can engulf things Photoreceptor eyespot - Can't see but can sense light, swims when light is off, sits still when on |
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Kinetoplastids
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One flagellum
Free living symbiotic species Some species are parasitic: Trypanosoma -sleeping sickness |
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Excavates
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Diplomonads
Parabasalids move via flagella have a feeding groove heterotrophic and lack mitochondria |
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Diplomonad
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free living and symbiotic
two nuclei multiple flagella Can be infectious: Giardia |
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Parabasalids
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anaerobic
all are symbiotic, some parasitic Trichomnas vaginalis - STD of the group |
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Red Algae - Division Rhodophyta
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Plant like protists
form colonies mainly marine, some freshwater grow deep water red color from accessory pigments to help boots photosynthssis Cell wall added by polysaccharides Some are held upright by CaCO3 Supports deep water food web |
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Green Algae - Division Chlorophyta
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Don't need to be multicellular to live
Some marine and freshwater species Unicellular and colony forms Chloropolasts in algae like those in plants Cell wall only cellulose Closest ancestor to modern plants |
