In this article we will discuss about the nutrition needed by autotrophic and heterotrophic bacteria. Most of the bacteria lack chlorophyll. They are thus unable to synthesize organic compounds which they need as food from simple inorganic substances. They obtain these from the external sources readymade. For this reason these organisms are put in the category of heterotrophic plants. However, [...]
In this article we will discuss about the beneficial and harmful activities of bacteria. A. Beneficial Activities of Bacteria: There are many kinds of bacteria without which we could not live. They are absolutely essential to the presence of life on earth. They make possible the continued existence of green plants and therefore of animals because the plants are the [...]
In this article we will discuss about the ten main orders under which bacteria has been classified. Order I. Pseudomonadales: It includes some photosynthetic, some chemosynthetic and many heterotrophic bacteria with straight, curved or spiral rods usually with polar flagellation. They are gram-negative and reproduce always by fission. The order includes 7 families. Of these the two important ones are: [...]