Aerobic respiration and anaerobic respiration both are involve chemical reactions which take place in the cell to produce energy, which is needed for active processes.
Aerobic respiration takes place in the mitochondria and requires oxygen and glucose, and produces carbon dioxide, water, and energy. The chemical equation is
C6H12O6 + 6O2 → 6CO2 + 6H2O (glucose + oxygen -> carbon dioxide + water).
Anaerobic respiration also produces energy and uses glucose, but it produces less energy and does not require oxygen. This is useful in tissues which have a high energy demand such as in working muscles, in which there is not enough oxygen to produce all the energy needed by using aerobic respiration alone. Anaerobic respiration takes place in the cell cytoplasm and produces lactic acid.
The lactic acid then needs to be oxidised later to carbon dioxide and water afterwards to prevent it building up. This process requires oxygen and therefore following anaerobic respiration there is oxygen debt in the cell, as oxygen is needed to break down the lactic acid produced.
Difference Between Aerobic and Anaerobic Respiration
|Aerobic Respiration||Anaerobic Respiration|
|It is the respiration which takes place in the presence of oxygen.||Oxygen is absent when this form of respiration takes place.|
|The end products of aerobic respiration are carbon dioxide and water.||The end products of anaerobic respiration are carbon dioxide and ethanol or lactic acid.|
|It can be found in the cytoplasm and the mitochondria.||It can be found only in the cytoplasm.|
|The amount of energy released in aerobic respiration is very high.||The amount of energy released in the anaerobic respiration is low.|
|All higher organisms such as mammals have this type of respiration.||Lower organisms such as bacteria and yeast use this type. In other organisms, it occurs during heavy activities|
|It carried on in two stages call glycolysis and Krebs cycle.||Anaerobic respiration is also carried on in two stages called glycolysis and fermentation.|
|It is carried out in the lungs of humans, animals is called as pulmonary respiration.||Anaerobic respiration uses bacteria such as lactobacillus to convert pyruvic acid into lactic acid. this bacteria commonly used for making curd or yogurt.|