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Transcript
Structure and Function of the Mitochondria Structure of Mitochondria • Organelle with two membranes • Found in both Prokaryotic and Eukaryotic Cells • In humans all of your mitochondria come from your mother • Have their own DNA Structure is a double membrane with many folds on the inner membrane Function of the Mitochondria • “Powerhouse of the cell” • Convert chemical energy stored in food into forms that the cell can use • Site of cellular respiration Cellular Respiration • C6H12O6 + 6O2 • 6CO2 + 6H2O • Memorize this formula • In words: The bonds in Sugar are broken apart. Energy is released and Carbon Dioxide and water are given off as waste • The energy released is not directly usable by the cell. • It is used to convert ADP (Adenosine Diphosphate) to ATP (Adenosine Triphosphate) Energy • When ATP releases the phosphate energy is released that the cell can use Endosymbiotic Hypothesis • Symbionts live together in a situation in which both benefit • They also divide just like bacteria • Get this – mitochondria have their own DNA and ribosomes • Sooo – it could be that mitochondria are bacteria that invaded eukaryotic cells. • Both would benefit All of your mitochondrial DNA came originally from your mother.