krebs
The Krebs cycle completes the breakdown of glucose begun in glycolysis. If oxygen is present, pyruvate enters the mitochondria and is converted to AcetylCoA. AcetylCoA enters the cycle by combining with 4-carbon oxaloacetate. Study the diagram to confirm that each turn of the cycle two for each glucose stores energy in 3 NADH+H + , one FADH 2 , and one ATP from GTP , and releases 2 CO 2 . The Krebs cycle is also known as the Citric Acid Cycle or the tricarboxylic acid cycle TCA cycle .