Glycolysis cycle: Glycolysis

Glycolysis , where the simple sugar glucose is broken down, occurs in the cytosol. Pyruvate, the product from glycolysis , is transformed into acetyl CoA in the mitochondria for the next step. Glycolysis , the citric acid cycle , and the electron transport chain work together to release chemical energy from glucose and store it in ATP. Glycolysis uses glucose to produce ATP and NADH. How pyruvate from glycolysis is converted to acetyl CoA so it can enter the citric acid cycle . Pyruvate is modified by removal of a carboxyl group followed by oxidation, and then attached to Coenzyme A. Overview and steps of the citric acid cycle , also known as the Krebs cycle or tricarboxylic acid (TCA) cycle .