Acetobacter aceti and Alicyclobacillus acidiphilus are two examples of acidophilic bacteria.Īns. What are the examples of acidophilic bacteria?Īns. Bacteria can be divided into various types based on characteristics such as cell wall composition, shape, mode of respiration, and mode of nutrition. What are the different types of bacteria?Īns. Speed varies with the type of bacteria, but flagellates are undoubtedly faster than gliders. Bacteria can reach a speed from 2 microns per second (a gliding bacteria, Beggiatoa) to 200 microns per second (polar bacteria, Vibrio comma). These methods include the application of heat, disinfectants, UV radiation, pasteurization, cooking, etc. Most of these disease-causing bacteria can be removed by sterilizing or disinfecting exposed surfaces, tools, instruments, and other tools. However, prevention is much more effective. Their effects can be corrected by taking antibiotics and prescribed medications. They are responsible for many infectious diseases, such as pneumonia, tuberculosis, diphtheria, syphilis, and tooth decay. Some bacteria can cause a number of diseases. It help in digestion and improving the body’s immunity system – Actinobacteria, Bacteroidetes, Firmicutes, Proteobacteria The production of the antibiotics, which is used in the prevention and treatment of bacterial infections – Soil bacteriaįerment food products – Streptococcus and BacillusĬonvert the milk into curd – Lactobacillus or lactic acid bacteria Mentioned below are the few benefits of a bacteria: There are few bacteria which are beneficial in various ways. Not all the bacteria are harmful to the humans. In such cases, bacteria can become resistant to antibiotics because there are differences in the genetic material. A genetic recombination in bacteria has the potential to form through transformation, conjugation or transduction. Bacterial reproduction is asexual, but in very rare cases it can undergo sexual reproduction. coli produces about two million bacteria every 7 hours. Under favorable conditions, Escherichia coli or E. The rate and timing of reproduction depends on conditions such as temperature and nutrient availability. Eventually, the cell elongates to form two daughter cells. DNA replication in the parent bacterium marks the beginning of cleavage. These are identical to the parent cell and to each other. One bacterium divides into two daughter cells. The classification of bacteria is mainly based on the following:Ĭlassification of bacteria based on Shapeīacteria follow an asexual mode of reproduction known as binary fission. Classification of Bacteriaīacteria can be classified into different categories based on their features and characteristics. These plasmids make certain strains of bacteria resistant to antibiotics. In addition to this DNA, they also have circular DNA called a plasmid. Ribosomes are the sites of protein synthesis. They do not contain any cell organelle as in an animal or plant cell except ribosomes. Pili can also help certain bacteria attach to host cells. Attached to the outer layer is one or more flagella or pili, which function as a locomotor organ. This particular protein is found nowhere else in nature than in the cell walls of bacteria.īut few are without this cell wall and others have a third protective layer called a capsule. The components of the bacterial cell wall form an important basis by which bacteria can be divided. Extremophiles are further categorized into different types based on the types of environments they inhabit:Īnother fascinating feature of bacteria is protective cell wall, which is made up of a special protein called peptidoglycan. They are very versatile organisms, surviving in extremely inhospitable conditions. Bacteria are unicellular microorganisms with the absence of a nucleus and other cell organelles therefore, they are classified as prokaryotic organisms. The structure of bacteria is simple body design. The cytoplasm, plasmid, cell wall, and flagella are clearly marked in the diagram. The diagram of bacteria mentioned below that show the structure of the typical bacterial cell with different parts. "Bacteria are the unicellular organisms belonging to the prokaryotic group, where the organisms lack several organelles and a true nucleus." Bacteria Diagram
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