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Bacteria are unicellular, prokaryotic organisms that help in decomposing organic materials and fixing atmospheric nitrogen. Bacteria are classified as aerobic and anaerobic based on the types of respiration. Read on to explore the difference between the two.
Aerobic Bacteria vs Anaerobic Bacteria
Following are the important differences between aerobic and anaerobic bacteria:
| Difference between Aerobic and Anaerobic | |
|---|---|
| AEROBIC | ANAEROBIC |
| Need oxygen to survive | Do not require oxygen to survive |
| Produce more energy | Produce less energy |
| Molecular oxygen is the final electron acceptor | Carbon dioxide, sulfur, nitrate, fumarate or ferric is the final electron acceptor |
| Bacteria are seen on the surface of the liquid | Bacteria are settled at the bottom of the liquid |
| Example: Mycobacterium tuberculosis | Example: Clostridium |
Aerobic Bacteria
The bacteria that grow in the presence of oxygen are called aerobic bacteria. They have the ability to detoxify oxygen with the help of enzymes. The final electron acceptor is molecular oxygen. Water is produced from the final electron acceptor. When in the liquid medium, they are seen on the surface of the medium. Example: Nocardia, Bacillus.
Anaerobic Bacteria
The bacteria that grow in the absence of oxygen are called anaerobic bacteria. It does not have the ability to detoxify oxygen. The final electron acceptor is carbon dioxide, sulfur, fumarate or ferric. Acetate-like substances, methane, nitrate and sulfide are produced by these bacteria. When in the liquid medium, they are seen at the bottom of the medium. Example: Bacteroids, E.Coli.
Also Read: Bacteria
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