"Mitochondria" are the membrane-bound structures that produce energy for cells. The mitochondria are thought to be descended from a once free-living cell that set up a symbiotic relationship with a host cell. More » Science Biology Cells

Plants need mitochondria because they are essential for the production of adenosine triphosphate, or ATP. In addition, the Krebs Cycle and the electron transport chain, two important steps in cellular respiration, take p... More » Science Biology Botany

Cristae are folded structures of the inner membrane of mitochondria that create more space to allow for a faster production of energy. They are key to the process that helps release energy during cellular respiration. More » Science Biology Cells
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