Chapter 28 - Protists Notes

Chapter 28 - Protists Notes - PROTISTS Chapter 28 More...

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PROTISTS - Chapter 28 “More about what they are not… than what they are” CHARACTERISTICS EUKARYOTES that AREN’T animals, plants, or fungi Primarily unicellular  (Paramecium, Euglena);         Some colonial (Volvox); some multicellular (Seaweed) Cilia or flagella at some time in life cycle Kingdom is   POLYPHYLETIC  (from two or more ancestral forms) Taxonomists are attempting to create monophyletic groups           using nucleic acid sequencing, cell structure       THREE CATEGORIES ANIMAL-LIKE  ( protozoa ): ingestive heterotrophs      EX: amoeba, paramecium, stentor FUNGUS-LIKE   absorptive  heterotrophs PLANT-LIKE  ( algae ): photosynthetic autotrophs     Have chlorophyll a and accessory pigments (carotene, xanthophylls)      EX: Euglena, algae, dinoflagellates, diatoms ORIGIN OF EUKARYOTES (ENDOSYMBIOTIC THEORY) Increasing multicellularity found in prokaryotes Allows for division of labor,  specialization of functions, 
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Chapter 28 - Protists Notes - PROTISTS Chapter 28 More...

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