Cellular respiration is a metabolic pathway that breaks down glucose and manufactures ATP, and there are four stages of cellular respiration. The cellular respiration stages include glycolysis, pyruvate oxidation, the citric acid or Krebs cycle, and oxidative phosphorylation. In glycolysis, glucose is a six-carbon sugar undergoing a sequence of chemical alterations.
It eventually becomes converted. In these outcomes, ATP is produced, and NAD is converted to NADH. In pyruvate oxidation, each pyruvate from glycolysis moves into the mitochondrial matrix, the innermost compartment of mitochondria. From that point, it is converted into a two-carbon molecule attached to coenzyme A, known as acetyl COA.
Carbon dioxide is distributed, and NADH is produced. In the citric acid phase, the acetyl CoA made in the last step combines with a four-carbon molecule and endures reactions. It stimulates the four-carbon starting molecule. ATP, NADH, and FADH are created, and carbon dioxide is released.