Where does the Krebs cycle take place in the mitochondria?

In eukaryotic cells, the Krebs cycle occurs in the mitochondrial matrix, which is the innermost compartment of the mitochondria. The matrix contains all the enzymes required for the cycle’s reactions. The products of the Krebs cycle, particularly NADH and FADH₂, are used in the electron transport chain located on the inner mitochondrial membrane to generate ATP.