Answer :

In eukaryotes, the oxygen-requiring reactions of aerobic cellular respiration occur in cellular organelles called mitochondria.

The mitochondria are the organelles that are referred to as the powerhouse of the cell because the process of energy formation of the cell takes place in this organelle.

Energy is derived by a cell for its functioning through the process of cellular respiration that occurs in the mitochondria. In this process, glucose and oxygen react in order to release energy in the form of ATP.

The process of glycolysis is the stage of cellular respiration that occurs in the cytosol and it does not require oxygen. The oxygen-requiring process i.e the citric acid cycle and the electron transport chain occur in the mitochondria of a cell.

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