BIOL 1202 Chapter : Chapter 28 Notes
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Answer: they are single-celled and eukaryotic: protists are more diverse than all other eukaryotes, no longer considered a single kingdom, most unicellular, but some colonial & multicellular. Protists are nutritionally diverse: photoautotrophs contain chloroplast, photosynthesis, heterotrophs absorbs orgnic molecules or ingest larger particles, mixotrophs combine photosynthesis and heterotrophs nutrition. Endosymbiosis in eukaryotic evolution: musch protists diversity have its origin in endosymbiosis, plastid- bearing lineage evolved into red and green algae, bother under went secondary endosymbiosis. Answer: more than two membranes: flagellates- move by one or more flagellae, ciliates- move by coordinates movement of cilia, amoebae- move by means of pseudopodia (false foot) Protist (eukaryotic) diversity: protistans are a paraphyletic group, 5 subgroups , excavata, chromalveolata, rhizaria, archaeplastida, unikonta. Main feature of eugleonzoans is a spiral or cry stalline rod of unknown function inside their flagella: excavata, kintoplastides, single, large mitochonridion containing an organized mass of.
