Significance of Terminal Oxidation

The significance of terminal oxidation is as under:-

  • 1.     In the entire process of aerobic respiration, terminal oxidation is the actual process which

(a)  Utilizes atmospheric (free molecular) oxygen.

(b) Provides energy for the formation of ATP during aerobic respiration (oxidative phosphorylation).

(c)  Represents oxidation by addition (use) of oxygen (and not by removal of hydrogen).

(d) Brings about oxidation of in all 10 NADH2 and 2FADH2 molecules, accounting for the utilization of CO2 and formation of 12 H2O in aerobic respiration.

  • 2.     Out of the 38 ATP formed in aerobic respiration, terminal oxidation accounts for 34 ATP through oxidative phosophorylation.
  • 3.     It occurs in the cristae membrane of mitochondria.
  • 4.     It can take place only with the help of and through the use of the respiratory chain (ETC) present in the cristae membrane of mitochondria.
  • 5.     It occurs only in the aerobes.