Where does glycolysis occur in mitochondria?

Glycolysis does not occur in the mitochondria. It takes place in the cytoplasm of the cell. While the mitochondria are involved in oxidative phosphorylation and the citric acid cycle (which occurs after glycolysis), glycolysis itself occurs outside the mitochondria in the cytoplasm. The pyruvate produced in glycolysis is then transported into the mitochondria for further processing under aerobic conditions.