Chapter_28_Eukaryotic_Diversity

Chapter_28_Eukaryotic_Diversity - Three-domain system:...

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Unformatted text preview: Three-domain system: Bacteria, Archaea, Eukarya Five Protist Candidate Kingdoms: Archaezoa, Euglenozoa, Alveolata, Stramenopila, Rhodophyta Protist Nutritional Diversity 1. Protozoa ingestive/animal-like 2. absorptive/funguslike 3. Algae photosynthetic/plantlike Overview of Protists Eukaryotes Most are unicellular Most are aerobic in metabolism (use mitochondria for cellular respiration) Base of food chains Account for at least photosynthetic production of organic material globally 5 kingdoms Archaezoa, Archaezoa: Lack mitochondria may represent early eukaryotic lineages Diplomonads 2 nuclei, no plastids, cytoskeleton; Giardia Giardia Euglenoza: Autotrophic and heterotrophic flagellates Euglenoids anterior pocket, paramylum; Euglena Kinetoplastids single large mitochondrion, symbiotic, kinetoplast (houses extranuclear DNA); African sleeping sickness (spread by fly bites) Euglenoid Kinetoplastid 8 3 Features Unique to Eukaryotes:- membrane-enclosed nucleus - mitochondria - cholorplasts...
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Chapter_28_Eukaryotic_Diversity - Three-domain system:...

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