Difference Between Aerobic and Anaerobic Bacteria

Bacteria are unicellular, prokaryotic organisms that help in decomposing organic materials and fix 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 difference 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, fumarate or ferric is the final electron acceptor
Bacteria are seen on the surface of 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 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 liquid medium they are seen at the bottom of the medium. Example: Bacteroids, E.Coli.

Also Read: Bacteria

These were some of the important difference between anaerobic and aerobic bacteria. To know differences between other topics in Biology you can register at BYJU’S or download BYJU’S app for simple and interesting content.

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