BIOL 1202 Chapter : Chapter 28 Learning Objectives
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Concept 28. 1: most eukaryotes are single-celled organisms: explain why the kingdom protista is no longer considered a legitimate taxonomic group, describe the different nutritional strategies of protists. Heterotroph- absorb organic molecules or ingest larger particles. Mixotrophs- combine photosynthesis and heterotrophic nutrition: explain the role of secondary endosymbiosis in the evolution of photosynthetic protists. Much protest diversity has its origin in endosymbiosis. Plastid-bearing lineage evolved into red and green algae. Both underwent secondary endosymbiosis: describe the ways in which protists move. Amoeba- move by means of pseudopodia: name the five supergroups of eukaryotes, excavata, chromalveolata, rhizaria, archaeplastida, unikonta. Concept 28. 2: excavates include protists with modified mitochondria and protists with unique flagella: describe the distinguishing features of the kinetoplastids and euglenids. The main feature of eugenozoans is a spiral or crystalline rod of unknown function inside their flagella: kinetoplasts- single, large mitochondrian containing an organized mass of dna called kinetoplast.
