Difference between Respiration and Fermentation
Characteristics |
Respiration |
Fermentation |
Condition |
In presence of Oxygen: aerobic respiration In absence of Oxygen: anaerobic respiration (in presence of nitrate, sulphate, carbonate) |
In absence of Oxygen
( it is an example of anaerobic respiration) |
Site |
Mitochondria | Cytoplasm |
Glycolysis |
Present | present |
TCA cycle or Krebs cycle |
Present | Absent |
Electron transport chain |
Present | Absent |
Electron donor |
Organic or Inorganic compound |
Organic compound |
Final electron acceptor |
Inorganic compound (eg. Oxygen) | Organic compound (eg. Pyruvate) |
End product |
Inorganic compound ( CO2 and H2O) | Organic compound (Lactic acid, ethanol etc) |
Oxidation of substrate |
Complete oxidation | Incomplete or partial oxidation |
Amount of Energy release |
Large amount | Small amount |
Number of ATP released from 1 glucose molecule |
38 ATP | 2 ATP |
Net oxidative state of Co-enzyme |
Changed |
Not changed |
Bacteria |
Aerobes: Bacillus, Mycobacterium |
Fermentative bacteria: lactobacillus, Streptococus |