what does the krebs cycle produce

The Krebs cycle produces several essential molecules per turn: 3 NADH, 1 FADH₂, 1 GTP (or ATP), and 2 CO₂. It also regenerates oxaloacetate, which is necessary for the continuation of the cycle. The NADH and FADH₂ molecules generated are vital as they carry electrons to the electron transport chain, where their oxidation drives ATP production through oxidative phosphorylation. The CO₂ produced is expelled as a metabolic waste product. Additionally, some cycle intermediates serve as precursors for amino acid, nucleotide, and heme biosynthesis.