Domain: Eukaraya Protist Species Diversity Diplomonadida – no DNA in mitochondria, no plastids Diplomonads: 2 equal sized nuclei Multiple flagella ex- Giardia intestinalis Parabasala – modified mitochondria Parabasilids: includes trichomonads ex- Trichomonas vaginalis Euglenozoa – flagella with unique spiral internal structure Kinetoplastids: single, large mitochondrion contains DNA called kinetoplast Live in marine water, freshwater, moist terrestrial environments ex- Trypanosoma levisi (causes African Sleeping Sickness) Euglenids: pocket at end of cell from which 1 or 2 flagella emerge Contain paramylon, glucose polymer that functions as a storage molecule ex- Euglena Alveolata – have sacs beneath the plasma membrane Dinoflagellates: components of marine and freshwater phytoplankton Most are unicellular, some are colonial Photosynthetic Apicomplexans: parasites Spread sporozoites – tiny infectious cells Apex with organelles for penetrating host cells ex- Plasmodium Ciliates: macronucleus & micronucleus Use cilia to move and feed ex- Paramecium Stramenopila – have “hairy” and smooth flagella Oomycetes: water mold and their relatives Heterotrophic Lack chloroplasts Have hyphae but not fungus because no chitin in cell wall Bacillariophytes (Diatoms): photosynthetic plankton members Cell wall contains silica (glass) Chrysophyta (Golden Algae): biflagellated photosynthetic autotrophs Both flagella attach near 1 end of cell wall Phaeophytes (Brown Algae): largest and most complex algae Includes seaweeds Cercozoa – have threadlike pseudopodia Foraminiferams: multichambered cells Chlorarachniophytes Radiolaria – have threadlike pseudopodia Radiolarians: skeletons fused into one piece Amoebozoa – lobe-shaped pseudopodia Amoebas: unicellular Use pseudopodia to move and feed Entamoebas Plasmodial Slime Molds Cellular Slime Molds Rhodophyta – closest relative of land plants Red Algae: edible sea weed No flagellated stage in life cycle Chlorophyta – closest relative of land plants Green Algae: phytoplanktonic