AP BIOLOGY

Detailed explanation-1: -Also known as the citric acid cycle, the Krebs cycle or TCA cycle is a chain of reactions occurring in the mitochondria, through which almost all living cells produce energy in aerobic respiration. It uses oxygen and gives out water and carbon dioxide as products. Here, ADP is converted into ATP.

Detailed explanation-2: -While the Krebs cycle does produce carbon dioxide, this cycle does not produce significant chemical energy in the form of adenosine triphosphate (ATP) directly, and this reaction sequence does not require any oxygen.

Detailed explanation-3: -During aerobic cellular respiration, glucose reacts with oxygen, forming ATP that can be used by the cell. Carbon dioxide and water are created as byproducts. The overall equation for aerobic cellular respiration is: In cellular respiration, glucose and oxygen react to form ATP.

Detailed explanation-4: -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.

Detailed explanation-5: -The Krebs cycle (Citric acid or Tricarboxylic acid cycle) is the second phase of aerobic respiration. The Pyruvic acid produced during Glycolysis enters the mitochondria and immediately converts to Acetyl Coenzyme A. Mitochondria are the cell’s powerhouses that produce energy.