The following points highlight the seven important components of bacterial cell. The components are: 1. Cell Envelope 2. Cytoplasm 3. Nucleoid 4. Plasmids 5. Inclusion Bodies 6. Flagella 7. Pili and Fimbriae. Bacterial Cell: Component # 1. Cell Envelope: It is the outer covering of protoplasm of bacterial cell. Cell envelope consists of 3 components— glycocalyx, cell wall and cell [...]
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 [...]