Bacteria exert both deleterious and benefical effects on human life. Beneficial species liberate fertilizer elements for growing crops, destroy sewage and other wastes, and produce valuable chemicals. Some species are…
In 1957 Dougherty has divided cells into two types based on the organization in the nucleus of the cell. One is a prokaryotic cell (primitive cell) and the other is…
Bacteria are unicellular. Their structure is a very simple type. Bacteria are prokaryotes because they do not have a well-formed nucleus. A typical bacterial cell is structurally very similar to…
Bacteria are a type of simple, microscopic, unicellular organism. In 1675, Dutch scientist A. van Leeuwenhoek was first discovered bacteria. He proved the existence of bacteria in his own made…