42 diagram of the kreb cycle
Schematic diagram of the Krebs cycle illustrating major components and enzymes. Citrate synthase is the primary enzyme converting oxaloacetate to citrate in the initial step of ATP synthesis. ª Once pyruvate is converted to acetyl CoA, it enters the Krebs cycle (also known as the citric acid cycle). ª The Krebs cycle is an eight-step cycle in which acetyl CoA is added to oxaloacetate, which is further broken down producing CO 2, reduced coenzymes (NADH + H + and FADH 2), and ATP. The Krebs Cycle Step 1: In the first step of the ... Krebs cycle Definition. The Krebs cycle, also known as the citric acid cycle or TCA cycle is a series of reactions that take place in the mitochondria resulting in oxidation of acetyl CoA to release carbon dioxide and hydrogen atoms that later lead to the formation of water. Diagram of the kreb cycle