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The endosymbiotic theory.  

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September 25, 2003 Zoë Lines The endosymbiotic theory Endosymbiotic theory is the theory is prostates that chloroplast and mitochondria began as prokaryotes that were living symbiotically within an early eukaryotic cell. Chloroplasts convert energy from the sun to energy rich sugar molecules that can be converted to chemical energy in the form of ATP by chloroplasts. They trap light energy and use it to produce carbohydrates from carbon dioxide and water. They are cigar-shaped cells found in the photosynthesizing cells in the palisade layer. Mitochondria convert potential energy to chemical energy and produce ADP, which cells use as an energy source. They are cigar-shaped organelle found in all cells Its inner membrane has folds, called cristae, which surround a fluid called matrix, they are used in the respiration process. The endosymbiotic theory is about the origins of mitochondria and chloroplast, which are organelles of eukaryotic cells. Eukaryotic cells are cells that have a nucleus and...

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