1. Topics
New classification
Aspects of diversity
Representatives in taxa

2. Ch. 26, Protists
p. 537
Five eukaryote clades
Protists – a complex polyphyletic group/kingdom related to several
other kingdoms – ultrastructural and molecular data helped do the
above new classification
Study 26-1 table (p.538 in text)

3. Kingdom - Protista Eukaryotic, mostly unicellular and aquatic
Ch. 26, Protists pp
Kingdom - Protista
Eukaryotic, mostly unicellular and aquatic
Some - colonial (loosely connected cells)
Some - simple multicellular bodies without “specialized tissues”
Very diverse informal Kingdom – diverse in structure, locomotion, reproductive strategies, nutrition, life styles, habitats, life histories etc.
Three conventional groups
Protozoa
Algae
Water molds and slime molds

4. Ch. 26, Protists pp
Diversity
Structure: Number of nuclei, types of organelles, cell surfaces
Locomotion: Amoeboid, cilliary, flagellar, combined
Reproduction: Mostly asexual, sexual too (syngamy)
Nutrition: Algae - photoautotrophic; others - saprobic (water and
slime molds), heterotrophic (Protozoa), facultatively
heterotrophic
Lifestyles: Free living, symbiotic (mutualism, commensalism,
parasitism), pathogenic
Habitats: Fresh water, marine, planktons, damp terrestrial
Life Histories: Polyphyletic group

5. Euglena - Mixotrophic Euglenozoans - Excavates

6. Ceratium - Mixotrophic Dinoflagellates - Chromalveolates with a test

7. Diatoms – photosynthetic Heterokontophytes - unicellular with geometric tests - Chromalveolates

8. Amoeba – amoeboid protozoan Amoebozoans - Unikonts

9. Trypanosoma – intercellular parasitic flagellated Euglenozoans - African sleeping sickness - Excavates

10. Plasmodium - intracellular parasitic protozoan –Apicomplexans - Malaria - Chromalveolates

11. Paramecium - ciliated predatory protozoan – Ciliophorans - Chromalveolates

12. Test forming Foraminiferans - Rhizarians

13. Stentor – Ciliated protozoans
Ciliophorans - Chromalveolates

14. Brown algae – Fucus, Macrocystis - large multicellular photosynthetic Phaeophytes - Chromalveolates