Respiration is the source of energy in the shape of ATP.Energy can be defined as capacity to do work and living organisms performs three types of work:
Chemical work
Transport Work
Mechanical Work
Respiration in bacteria
Respiration in bacteria may be aerobic or anaerobic
Aerobic respiration:
In this respiration a series of reactions convert glucose to carbon dioxide and water and give off energy. Free oxygen is required as the final acceptor for electrons and hydrogen to form water. Bacteria, able to grow in the presence of oxygen, are called aerobic bacteria. Pseudomonas is an example of aerobic bacteria.
Anaerobic Respiration:
In this respiration free oxygen is not required. Organic compounds are the final electron acceptors in this type of respiration. The bacteria able to grow in the absence of oxygen are called anaerobic bacteria. Spirocheta is an example of anaerobic bacteria.
Some bacteria are neither aerobic nor anaerobic, but facultative E.coli is an example facultative anaerobic bacteria. Facultative bacteria grow either in the presence or absence of oxygen. Some bacteria require a low concentration of oxygen for growth and are called microaerophilic. Campylobacter is an example of microaerophilic bacteria.
Chemical work
Transport Work
Mechanical Work
Respiration in bacteria
Respiration in bacteria may be aerobic or anaerobic
Aerobic respiration:
In this respiration a series of reactions convert glucose to carbon dioxide and water and give off energy. Free oxygen is required as the final acceptor for electrons and hydrogen to form water. Bacteria, able to grow in the presence of oxygen, are called aerobic bacteria. Pseudomonas is an example of aerobic bacteria.
Anaerobic Respiration:
In this respiration free oxygen is not required. Organic compounds are the final electron acceptors in this type of respiration. The bacteria able to grow in the absence of oxygen are called anaerobic bacteria. Spirocheta is an example of anaerobic bacteria.
Some bacteria are neither aerobic nor anaerobic, but facultative E.coli is an example facultative anaerobic bacteria. Facultative bacteria grow either in the presence or absence of oxygen. Some bacteria require a low concentration of oxygen for growth and are called microaerophilic. Campylobacter is an example of microaerophilic bacteria.
