The junction between glycolysis and the Krebs Cycle is the oxidation of pyruvic acid to acetyl CoA Pyruvic acid molecules move from the cytosol into the mitochondrion. The Krebs Cycle reactions oxidize the remaining acetyl fragments to carbon dioxide. Cycle named either the citric acid cycle for the first main product of the cycle or the Krebs cycle in honor of Sir Hans Krebs. The Krebs cycle has eight enzyme-controlled steps which occur in the mitochondrial matrix . I am interested in your knowledge of the main features of the cycle.
Citric acid is isomerized to isocitric acid.
A multienzyme complex catalyzes r emoval of carbon dioxide . The phosphate group is transferred to GDP to form GTP and succinic acid . GTP donates a phosphate group to ADP to form ATP . Succinic acid is oxidized to fumaric acid and FAD is reduced . Two hydrogens are transferred to FAD to form FADH 2 .