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The mitochondria is responsible for respiration, but glycolysis occurs in the cytoplasm of the cell. The Krebs cycle and electron transport both occur in the mitochondria of t â¦ he cell. Cellular aerobic respiration occurs within the mitochondria. Cellular respiration occurs in the mitochondria of a cell.
Fermentation. Cellular respiration generally refers to aerobic respiration, where cells use the process described above to make ATP. If oxygen is unavailable, however, our cells can still make a limited amount of ATP through lactic acid fermentation. In this process, the cell uses glycolysis to break up glucose (just as in aerobic respiration) and donates electrons to a sugar molecule called pyruvate, which forms when glucose is broken down.