Q10. Differentiate between Aerobic and Anaerobic respiration.
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Difference between Aerobic respiration and Anaerobic respiration:
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Differentiate between Aerobic and Anaerobic respiration.
Definition
- Aerobic respiration is a set of metabolic reactions that take place in the presence of oxygen, occurring in a cell to convert chemical energy into ATPs.
- Anaerobic respiration is a process of cellular respiration where the high energy electron acceptor is neither oxygen nor pyruvate derivatives.
Overall equation
- The overall equation of aerobic respiration is:
C6H12O6 + 6O2 → 6CO2 + 6H2O + energy
- The overall equation of anaerobic respiration is:
C6H12O6 → C2H5OH + CO2 + energy
Presence of Oxygen
- Aerobic respiration takes place in the presence of oxygen.
- Anaerobic respiration takes place in a condition where there is a low oxygen environment.
Exchange of gases
- There is an exchange of gases during aerobic respiration where oxygen is absorbed, and carbon dioxide is released.
- The exchange of gases doesn’t take place during anaerobic respiration. However, some gases like sulfur and nitrogen gases are released by some organisms.
Location
- Aerobic respiration, after glycolysis, occurs in the mitochondria of eukaryotes and cytoplasm of prokaryotes.
- Anaerobic respiration occurs only in the cytoplasm of a cell.
End products
- The end products of aerobic respiration are carbon dioxide, water, and energy.
- The end products of anaerobic respiration are acids, alcohols, gases, and energy.
Energy produced
- A total of 38 ATPs are produced during aerobic respiration, some of which are lost during the process.
- Only 2 ATPs are formed during anaerobic respiration.
Reactants
- Carbohydrates and oxygen are the prerequisites of aerobic respiration.
- Some other electron acceptors like sulfur and nitrogen are required along with the carbohydrates.
Oxidation
- Complete oxidation of carbohydrates takes place during aerobic respiration.
- Incomplete oxidation of carbohydrates takes place during anaerobic respiration.
Nature of the process
- Aerobic respiration is comparatively longer than anaerobic respiration.
- Anaerobic respiration is shorter than aerobic respiration.
Occurs in
- Aerobic respiration occurs in most of the higher organisms like plants and animals.
- Anaerobic respiration occurs in primitive prokaryotes. Anaerobic respiration also takes place in the muscle cells in humans during extreme movements.
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