CHRISTIAN KOCH, MICROCHEMICALS / SCIENCE PHOTO LIBRARY CHRISTIAN KOCH, MICROCHEMICALS / SCIENCE PHOTO LIBRARY
Mitochondrion structure. Artwork showing the internal structure of a mitochondrion. This structure, found in eukaryotic cells, is the site of energy production. There are two membranes: an outer membrane and an inner membrane that forms folds (cristae). The cristae are the sites of aerobic cell respiration, where sugars and fats are oxidised, which releases energy. ATP synthase is the enzyme that is critical for energy production, producing ATP from another chemical called ADP. Structures shown here include DNA loops (white). Other mitochondria are shown at upper right, lower right and left.
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