Difference between Respiration and Fermentation




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

 

Difference between Respiration and Fermentation