Ch 28 - o o o o o Goals for Chapter 28 Understand how...

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Goals for Chapter 28 o Understand how endosymbiosis gave rise to mitochondria and chloroplasts and eukaryotes o Know a medically or ecologically important organism for each group discussed in lecture o Know a homology for each group o Be responsible for organelles in Euglenids, ciliates o Understand conjugation in ciliates Know green algae are ancestors of plants “Kingdom” Protista 0. Unifying feature: not fungi, true plants, or animals 1. Unicellular eukaryotes 2. Paraphyletic, will emphasize groups with medical or ecological importance Form and Function o Complex cellular structure o Photoautotrophs (use light as energy source, and carbon as the food source), heterotrophs and mixotrophs o Can be sexual, although diploid usually in zygote stage, everything else is haploid adult Evolution of Eukaryotes o Serial endosymbiosis (repeated living) 0. Plasma membrane folds in to form nuclear membrane and endoplasmic reticulum 1. Engulfs bacterial symbiont to form mitochondrion 2. Later engulfs bacterial symbiont to form chloroplasts Evolution of Eukaryotes o Evidence: 3. Organelles similar size to bacteria
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This note was uploaded on 12/02/2009 for the course BIOL 1202 taught by Professor Gregg during the Spring '08 term at LSU.

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Ch 28 - o o o o o Goals for Chapter 28 Understand how...

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