Bacteria can be found living in all kind of conditions from freezing temperature to boiling point.
Most bacteria need oxygen to survive. Those bacteria are called obligate aerobes. They use cellular
respiration which is when sugar molecules are brake down with oxygen to create energy.
Other bacteria are called obligate anaerobes. They are unable to grow in presence of oxygen.
They use 2 ways to release energy;
There is also bacteria called facultive anaeobes. These bacteria can grow with or without the presence of oxygen. They use cellular respiration when in presence of oxygen and fermatation in absence of it.
Most bacteria need oxygen to survive. Those bacteria are called obligate aerobes. They use cellular
respiration which is when sugar molecules are brake down with oxygen to create energy.
Other bacteria are called obligate anaerobes. They are unable to grow in presence of oxygen.
They use 2 ways to release energy;
- Photosynthesis which is the use of light to produce sugar from CO2 and H2O. In this case, oxygen is the waste product.
- Fermantation which is the breakdown of sugar molecules without oxygen.
There is also bacteria called facultive anaeobes. These bacteria can grow with or without the presence of oxygen. They use cellular respiration when in presence of oxygen and fermatation in absence of it.