Which of the following statements are correct about the Krebs Cycle, a critical pathway in cellular respiration? As part of the Krebs Cycle, succinate is converted to fumarate by the enzyme succinate dehydrogenase, which releases hydrogen ions (H+). This week, we measured the acidity of the Krebs cycle and the rate of aerobic cellular respiration by measuring CO2 production. The Krebs Cycle is the main pathway in the anaerobic fermentation process, which produces lactic acid. In aerobic respiration experiments, it is determined that most of the ATP is generated in the mitochondria. The Krebs Cycle is a series of reactions that can be documented in a chromatophore membrane.