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Euglena Amoeba Foraminifera Lab 3 Protozoa and Slime Molds Dictyostelium Actinopoda Protozoa and Slime Molds • Shared Characteristics – Eukaryotic Cells • Contain a membrane bound nucleus • Contain complex, membrane bound organelles – Unicellular – Autotrophic, Heterotrophic, Parasitic Lineage Discicristata (p42-45) Trypanosoma Trichonympha Euglena Trichomonas Giardia Peranema 1 Lineage Discicristata (p42-45) • Common Traits: – Flagella – No cell wall – No layer beyond the plasma membrane Lineage Alveolata (p46-47) • Phylum Dinoflagellata – Autotrophic (Chlorophyll a & c and carotenoids) – Phytoplankton • How can you tell them apart from zooplankton? – Usually 2 flagella • Cellulose cell wall Other Characteristics of Dinoflagelletes (depends on species) • Thecate– protective plates armored (often on free-living) • Bioluminescent • Endosymbiotic (corals and anemones) 2 Lineage Alveolata • Phylum Dinoflagellata – Gymnodinium breve • Responsible for red tides • Produce toxins Lineage Alveolata • Phylum Apicomplexa – All parasitic – No movement organelles • Gregarina Species – Parasite in the gut of many insects • Plasmodium vivax – Causes malaria Lineage Alveolata • Phylum Ciliata – Has cilia for feeding, locomotion, or both Paramecium 3 Lineage Alveolata Phylum Ciliophora Stentor Euplotes Vorticella Lineage Amoebozoa Pseudopoda •Phylum Rhizopoda •No cell wall Amoeba proteus •Pseudopodia •Some have tests pseudopod test •Diagram p 532 is vague, DON”T USE IT Diffulgia Lineage Amoebozoa • Phylum Myxogastrida – Heterotrophic – Coenocyte (many nuclei in one cell) – Plasmodium can give rise to a sporangium 4 Lineage Amoebozoa • Phylum Dictyostelida • Myxamoebas – Independent amoeboid cells – form a pseudoplasmodium to reproduce Psuedoplasmodium Fruiting body with spores Lineage Rhizaria • Common Traits: – Numerous thin pseudopoda – Heterotrophic – Most have tests Lineage Rhizaria • Phylum Actinopoda • Radiolarians – Amoebas with glassy test • Heliozoans – Lack a test 5 Lineage Rhizaria • Phylum Foraminifera – Most abundant organisms in ocean – Limestone from Foram tests 6
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