" />" />


Definition – What is the meaning of Bacteria?

Bacteria constitute a large domain of prokaryotic microorganisms. Their cell structure is less intricate than that of other organisms because of their absence membrane or nucleus bound organelles and they are single-celled. Their genetic particulars are available in their single DNA chromosome.

Many of the bacteria’s have an additional line of the inherited substance, referred to as a plasmid, which is often composed of genes that give such bacteria an edge over the others.

The singular term for bacteria is bacterium.

Bacteria explained by Bud Bionics

Bacteria are classified into five categories determined on their shapes:

  1. Corkscrew (spirochetes)
  2. Comma (vibrio)
  3. Rod (bacilli)
  4. Spherical (cocci)
  5. Spiral (spirillum)

Bacteria can survive as single cells, in groups, chains or clusters, colonies or pairs. Bacteria are very important in recycling nutrients, with various components of the nutrient cycle are contingent on these microscopic organisms. These phases include putrefaction and the addiction of nitrogen from the atmosphere. In biological groups that encircle cold seeps and hydrothermal vents, bacteria transform break down these compounds like methane and hydrogen sulfide to the vitality needed to assist exitance in these communities.

There are typically a million bacterial cells in a milliliter of fresh water and 40 million of these organisms in a gram of soil. Biomass of bacteria on Earth surpasses that of all animals and plants in total. The human flora (the skin and the gut) hold approximately 10 times as many bacteria as there are human cells. However, the large number of bacteria in the human body is reflected as safe and cannot gain control over the immune system.

Commercially, bacteria are utilized in the failure of oil spills and treatment of sewage, the recuperation of metals such as copper, palladium, and gold in mining, and the making of cheese and yogurt by a procedure called fermentation.

« Back to Glossary Index