What are the intermediate compounds in the respiratory pathway?

The respiratory pathway, primarily involving cellular respiration, includes several key intermediate compounds. These include glucose, which is broken down through glycolysis to form pyruvate. Pyruvate is then converted into acetyl-CoA, entering the citric acid cycle (Krebs cycle), where it is further processed to produce intermediates like citrate, alpha-ketoglutarate, and succinate. This pathway ultimately leads to the production of ATP, NADH, and FADH2, which are crucial for energy production.