give 2 difference between aerobic and anaerobic respiration
Answers
Answer:
Anaerobic respiration is a process of cellular respiration where the high energy electron acceptor is neither oxygen nor pyruvate derivatives.
In anaerobic respiration, the electron acceptor can be sulfate ion (SO4–) or nitrate ion (NO3–) or a variety of other molecules.
Some archaea, called methanogens, are known to use carbon dioxide as the electron acceptor, producing methane as a by-product.
Similarly, another group of purple sulfur bacteria uses sulfate as an electron acceptor, thus producing hydrogen sulfide as a by-product.
These organisms reside in low-oxygen environments and thus opt for anaerobic pathways to break down the chemical fuels.
Anaerobic respiration is similar to aerobic respiration in that the molecules enter the electron transport chain to pass the electrons to the final electron acceptor.
The final electron acceptors involved in anaerobic respiration have a smaller reduction potential than oxygen molecules which results in less energy production.
Anaerobic respiration, however, is essential for biogeochemical cycles of carbon, nitrogen, and sulfur.
The nitrate that acts as an electron acceptor in anaerobic respiration produces nitrogen gas as a by-product, and this process is the only route for fixed nitrogen to reach the atmosphere.
Fermentation is another pathway for anaerobic respiration, where the only energy extraction pathway is glycolysis, and the pyruvate is not further oxidized via the citric acid cycle.
The energy-rich molecule, NADH, is also not utilized during fermentation.
Explanation:
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AEROBIC:-
- Takes place in presence of oxygen.
- During this, Carbon dioxide, water and ATP are formed
ANAEROBIC:-
- Takes place in absence of oxygen.
- During this, Lactic acid, ethanol and ATP are formed.