Home
We all know that there are organisms tinier than a grain of sand and almost invisible in our midst exist and that these organisms are found everywhere and even inside our own body. Most of these organisms are now being studied, their effects on us – human beings and how to counteract the diseases that some of these organisms have caused us. The very first person who saw a microorganism was Anton van Leeuwenhoek and he was the first one who studied the bacteria and other things that he took fascination of.
A bacterium can be divided into two categories; it can either be an aerobic bacterium or an anaerobic bacterium. An aerobic bacteria needs oxygen to live, they use oxygen to carry out their functions and processes, to convert sugars and fats into energies that a cell needs. An aerobic bacterium can also be subdivided into other parts; there are the obligate aerobes, the facultative anaerobes and the microaerophiles. An obligate aerobes needs oxygen in all of its processes and also for energy while the facultative anaerobes are aerobic bacterium that use oxygen but also has other means of energy production and mean while the microaerophiles use oxygen at small amounts only.
This aerobic bacterium is very important in the cycle of life, especially in the decomposition stage. They help in decomposing organic materials that are found in the soil or even in composting systems and when they have decomposed these organic materials, the decomposed material will go to the soil and will make the soil rich. And because they aid in decomposing organic materials, they are used to help minimize the pollution in our planet by decomposing pollutants in sewage systems, septic tanks and everywhere! The pollutants are broken down mainly into carbon dioxide water, nitrates, sulphates and also biomass. So you see bacteria is not that bad after all!