Anaerobic Respiration

Anaerobic means respiration without O2 = Fermentation

Lactate Fermentation: in Muscle- Glucose partially broken down into lactate (3C) & 2 net ATP.

Alcohol Fermentation: in Yeast & Bacteria- Glucose partially broken down into ethanol (2C alcohol), CO2 & 2 net ATP.

Cells do fermentation when no oxygen is present. 2 net ATP are made, but more importantly, the 2 NADH made in the diagram below will be broken down to 2 NAD+ which can cycle back to glycolysis to keep the process going so more ATP can be made.