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Unformatted text preview: 8. ON AP
-Endosymbiotic theory: organism engulf photosynthetic bacteria
-larger host eukaryotic cells engulf smaller aerobic cell
-did not digest them
-develop symbiotic relationship-->natural selection
-First endosymbiosis: origin of mitochondria: engulfed aerobic bacteria
-Second endosymbiosis: origin of chloroplast: engulfed photosynthetic bacteria
-mitochondria and chloroplast have double membrane
-have naked, circular DNA
-make copies of themselves (reproduce independently of eukaryotic cell)
-also move freely in the cell
-can perform protein synthesis with prokaryotic type ribosomes !...
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