Differentiate between aerobic and anaerobic
respiration.
Answers
The difference between aerobic and anaerobic respiration.
Aerobic respiration Anaerobic respiration
1. Aerobic respiration refers to complete breakdown of metabolic fuels in presence of oxygen. 1. Anaerobic respiration is the process of partial breakdown of fuel (glucose) in absence of oxygen.
2. It includes glycolysis, citric acid cycle and oxidative phosphorylation. The first two processes take place in the cytoplasm while last one occurs in mitochondria. 2. Glycolysis is followed by ethanol fermentation (occurs in yeast) or lactic acid fermentation (in muscles and microbes like lactic acid bacteria).
3. The end products are carbon dioxide and water. 3. End products of ethanol fermentation are ethanol and carbon dioxide; that of lactic acid fermentation are lactic acid
4. Owing to complete oxidation of glucose, a large amount of energy is produced (36-38 ATP molecules) 4. Incomplete oxidation of glucose does not release all stored energy and only 2 ATP molecules are produced.
Anaerobic respiration is carried out by yeast and other anaerobic organisms like lactic acid bacteria, E. coli, Staphylococcus, Clostridium etc.
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Answer:
Cellular respiration is a process that takes place inside the cells, where the breakdown of glucose molecules releases energy. The process can be conveniently divided into two categories based on oxygen usage, namely aerobic and anaerobic respiration.
Differences between aerobic and anaerobic respiration
The difference between aerobic and anaerobic respiration is tabulated below.
Aerobic Respiration Anaerobic Respiration
It is the process of cellular respiration that takes place in the presence of oxygen gas. It is the process of cellular respiration that takes place in the absence of oxygen gas.
It involves the exchange of gases between the organism and the outside environment. Exchange of gases is absent.
It can be found in the cytoplasm and the mitochondria It can be found only in the cytoplasm.
Glucose breaks down into carbon dioxide and water. Glucose breaks down into ethyl alcohol, carbon dioxide, and energy
All higher organisms such as mammals have this type of respiration. Lower organisms such as bacteria and yeast use this type.