Aerobic Respiration

Aerobic Respiration
Aerobic respiration has two major stages: the Krebs cycle and the electron transport chain, which is associated with chemiosmosis (using the energy released as protons move across a membrane to make ATP). In the Krebs cycle, the oxidation of glucose that began with glycolysis is completed. As glucose is

Fermentation

Fermentation
When oxygen is present, cellular respiration continues as pyruvic acid enters the pathways of aerobic respiration. In anaerobic conditions (when oxygen is absent), however, some cells can convert pyruvic acid into other compounds through additional biochemical pathways that occur in the cytosol. The combination of glycolysis and these additional