Aerobic and Anaerobic Respiration

Cellular respiration is the process of energy production in all organisms where cells generate energy in the form of ATP. There are two types of respiration viz., aerobic respiration and anaerobic respiration.

Aerobic Respiration

Aerobic respiration is the process of cellular respiration which utilizes oxygen. In this type of respiration, the respiratory substrate is completely utilized and releases energy in the form of ATP and gives CO2 and water as end-products. The chemical equation of aerobic respiration is given below:

C6H12O6 + 6O2 → 6CO2 + 6H2O+ Energy (ATP)

Anaerobic  Respiration

Anaerobic respiration takes place in the absence of oxygen and the respiratory substrate is not completely oxidized so, it releases a little energy from glucose. This type of respiration occurs in microorganisms like yeast and some bacteria and parasitic worms. The chemical equation of aerobic respiration is given below:

C6H12O6 → 2 C3H6O3 + Energy (ATP)

Difference Between Aerobic and Anaerobic Respiration

Aerobic

Anearobic

It is common in most of the higher organisms.

It occurs in microorganisms like yeast and some bacteria

but very rare in higher organisms.

Oxygen is utilized. Oxygen is not utilized.
CO2 is always released. CO2 may or may not be released.
The amount of energy released is high, 36ATP Amount of energy released is low, 2 ATP.
The end products are carbon dioxide, water, & ATP The end products are carbon dioxide, reduced species & ATP
It produces water. It does not produce water.
It yields organic end products. It may or may not yield inorganic end products with organic ones.
Stages involved are; Glycolysis, Krebs cycle, and Electron Transport Chain. Stages involved are; Glycolysis and Fermentation.

 

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