Respiration in Bacteria

Subject: Biology

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Overview

Both aerobic and anaerobic respiration occurs in bacteria. This note contains information about respiration in bacteria.
Respiration in Bacteria

Both aerobic and anaerobic respiration occurs in bacteria.

Aerobic respiration in bacteria
source:lewisdartnell.com
fig:Aerobic respiration in bacteria

Aerobic respiration

In aerobic respiration, respiration occurs in the presence of oxygen and a complete breakdown of glucose takes place in this respiration. It is of following types;

Obligate aerobic

There must be the presence of oxygen for obligate aerobic respiration. They die in the absence of oxygen. Eg; Bacillus subliles

Facultative aerobic

In facultative aerobic bacteria, respiration normally takes place by anaerobically but when there is a presence of oxygen they can change into aerobes. Eg; Rhodopseudomonas

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Aerobic respiration in bacteria
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fig:Anaerobic respiration in bacteria

Anaerobic respiration

In anaerobic respiration, respiration occurs in the absence of oxygen and incomplete breakdown of glucose takes place in this process.

Obligate anaerobic

In obligate anaerobic bacteria, respiration occurs anaerobically and they die in the presence of oxygen. Eg; Clostridium botulinum

Facultative anaerobic

In facultative anaerobic bacteria, respiration normally takes place by anaerobically but they can change into anaerobes in the absence of oxygen. Eg; Halophiles

Things to remember
  • In aerobic respiration, respiration occurs in the presence of oxygen and a complete breakdown  of glucose takes place.
  • There must be the presence of oxygen for obligate aerobic respiration.
  • In facultative aerobic bacteria, respiration normally takes place by anaerobically but when there is a presence of oxygen they can change into aerobes.
  • In facultative anaerobic bacteria, respiration normally takes place by anaerobically but they can change into anaerobes in the absence of oxygen.

 

 

 

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