Krebs cycle

• Where does the Krebs cycle occur

  Matrix of mitochondria
• 1. Acetyl coenzyme A combined with a 4-carbon molecule oxaloacetate to form a 6-carbon molecule citrate.
  2. Citrate undergoes decarboxylation and dehydrogenation producing one NADH and carbon dioxide to produce a 5-carbon molecule.
  3. It regenerates oxaloacetate by releasing another carbon dioxide molecule, produces ATP, 2NADH and FADH.