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Endosymbiosis Theory Linking different types of cells Delving Into Chloroplasts' Past Read following articles: http://news. sciencemag.org/2006/12/delvingchloroplasts-past & evidence for evolution Berkeley ● chlorarachniophytes → small group of algae that live in tropical locations ● Organisms deemed to have undergone a double endosymbiotic event. ● What is the evidence for this theory? Term Clarifications from Article Genome: An organism’s (living thing) complete set of DNA DNA (Deoxyribonucleic acid): genetic material passed down that contains codes necessary for life ● ● ● Chloroplasts have own set of DNA Mitochondria have own set of DNA Cells have own set of DNA Lineage: sort of like a family tree Evidence supporting the Endosymbiosis Theory Modify your Poster Hypothesis 1 Hypothesis 1 Hypothesis 2 Diversity of Cells Cell Shape Diversity: Bacteria Bacteria Live in Hydrothermal Vents Archaea Different from Bacteria? Has a different composition cell wall compared to bacteria. Eukaryotic Cells Eukarya: Plants Eukarya: Animals Domains of Life Bacteria Archaea Eukarya 1. Can you tell whether or not a cell is aerobic or anaerobic by looking at it? 2. Can you tell whether or not a cell is autotrophic or heterotrophic by looking at it? 3. Can you tell whether or not a cell survives alone or is part of a multicellular system by looking at it? 4. Do you think single celled organisms arose first or multicellular organisms?
