Overview and steps of the citric acid cycle, also known as the Krebs cycle or tricarboxylic acid (TCA) cycle.

Overview of the Krebs or citric acid cycle, which is a series of reactions that takes in acetyl CoA and produces carbon dioxide, NADH, FADH2, and ATP or GTP.

The citric acid cycle, always active to varying degrees, is crucial for ATP production. Acetyl-CoA enters the cycle, undergoes oxidations, and exits as carbon dioxide, producing FADH2 and NADH.

Acetyl CoA serves as fuel for the citric acid cycle in the next stage of cellular respiration. The addition of CoA helps activate the acetyl group, preparing it to undergo the necessary reactions to enter the …

The citric acid cycle captures the energy stored in the chemical bonds of acetyl CoA (processed glucose) in a step-by-step process, trapping it in the form of high-energy intermediate molecules.

Citric acid cycle. The acetyl CoA made in the last step combines with a four-carbon molecule and goes through a cycle of reactions, ultimately regenerating the four-carbon starting molecule.

Fumarate forms a link between TCA and Urea cycle. Aspartate can be converted to an intermediate of either TCA or Urea cycle. In Urea cycle, aspartate condensates with citrulline to form argino succinic …

Entry into the citric acid cycle is largely controlled through pyruvate dehydrogenase (above), the enzyme that produces acetyl CoA. However, there are two additional steps in the cycle that are subject to …

How many molecules of acetyl CoA, an acetyl group attached to ‘coenzyme A’, are produced from a single molecule of glucose for participation in the Krebs cycle?

In fermentation, however, the pyruvate made in glycolysis does not continue through oxidation and the citric acid cycle, and the electron transport chain does not run. Because the electron transport chain …