In this article, we differentiate between Aerobic Respiration and Anaerobic Respiration with full definition and pointwise in tabular form and cover all the point
Difference Between Aerobic and Anaerobic Respiration
Aerobic Respiration: It is a multistep complete oxidative breakdown of respiratory substrate into carbon dioxide and water with the help of oxygen acting as a terminal oxidant. Aerobic respiration is the usual mode of respiration in all higher organisms and most of the lower organisms.
Anaerobic Respiration: It is a multistep breakdown of respiratory substrate in which at least one end product is organic and which does not employ oxygen as an oxidant. Anaerobic respiration occurs in many lower organisms e.g. certain bacteria, yeast. In human body its occurs regularly in red blood cells and during heavy exercise in muscles
Difference Between Aerobic and Anaerobic Respiration
| Aerobic Respiration | Anaerobic Respiration | |
|---|---|---|
| 1 | Method: It is the common method of respiration | It occurs permanently only in a few organisms. In others it may occur as a temporary measure to overcome shortage of oxygen |
| 2 | Steps: It is completed in 3-steps glycolysis, Krebs cycle and terminal oxidation | There are two step - glycolysis and anerobic breakdown of pyruvic acid |
| 3 | Oxygen: It requires oxygen | Oxygen is not required |
| 4 | Breakdown: Respiratory substrate is completely broken down | Respiratory substrate is incompletely broken down |
| 5 | End Products: They are inorganic | Atleast one end product is organic. Inorganic products may or may not be present |
| 6 | Toxicity: End Products show little toxicity | They organic end product is generally toxic |
| 7 | Occurrence: It occurs partly in cytoplasm and partly in mitochondria | Anaerobic respiration is carried out entirely in cytoplasm mitochondria are not required |
| 8 | E.T.C An electron transport chain is required | ETC is not required |
| 9 | Energy: In releases 686Kcal or 28270KJ energy per mole of glucose | Energy liberated is 36-50kcal or 150-210kJ per mole of glucose |
| 10 | ATP: The liberated energy is used in forming 36-38 ATP molecules per mole of glucose | The liberated energy is used in synthesis of 2 ATP molecules |