Bacterial Growth Requirements

Bacteria Growth Requirements Microbiology Life as we now it has ended. What is left you ask? Well it is state the only thing that could defy an incident that could end our known way of life is a cockroach and a pack or Twinkies. In truth the great survivor would be microorganisms. Microorganisms coffin nail survive where most fucknot due to their size, nutritional needs, competency learnments, and are very good at adapting to different environments (Black 2008).Microorganisms require ii things to live a long healthy life, and these are physical and nutritional factors. Physical factors allow pH, temperature, oxygen concentration, moisture, hydrostatic pressure, osmotic pressure, and radiation (Black 2008). Nutritional factors include carbon, nitrogen, randomness, phosphorus, trace elements, and sometimes vitamins (Black 2008). For the purpose of this operation I will focus on E. coli. Pathogenic Escherichia coli will be discussed since it is a common, but sober bacterium.E . coli in humans is found in the intestines. This bacterium is very durable, meaning that it is well- qualified to its habitat. For example, it can formulate with glucose being the only food source. This bacterium can too grow with or without O2. If located in anaerobiotic habitat it can it will use the fermentation process producing mixed acids and gases (Todar 2012). This bacterium has shown that it can also use anaerobic respiration when NO3 or NO2 is available.Chemicals, pH, temperature, are a few signals that determines how E. coli will respond (Todar 2012). When it senses a change in the environment it can swim toward or away from anything useful or harmful. Temperature can also affect E. coli. A change in temperature allows E. coli to change pore diameter of its outer membrane to accommodate certain nutrients, or to exclude something harmful. E. coli also rations its nutrient supply by taking in account how much is available in its environment.This means that it will not take in nutrients unless it has ample to feed more bacteria that will be produced (Todar 2012). As you can see, this amazing microbe has the superpower to adapt to its environment and in some case overcome. Imagine the microbes that are out there that has not be identified yet. Reference Black, J. (2008). Microbiology principals and explorations. (7th Edition ed. ). Jefferson City GGS Book Services. Todar, K. (2012). Todars online textbook of bacteriology. Retrieved from http//www. textbookofbacteriology. net/e. coli. htmlbacterial Growth RequirementsBacterial Growth Requirements Evelyn Lyle ITT Technical Institute Angela Ask, MPS January 15, 2012 Every organism must discovery in its environment all of the substances required for energy generation and cellular biosynthesis. The chemical substances and elements of this environment that are employ for bacterial product are referred to as nutrients. Many bacteria can be identified in the environment by inspection or using genetic techniques. The nutritional requirements of a bacterium such as E Coli are revealed by the cells elemental composition.These elements are found in the form of water, inorganic ions, small molecules and macromolecules which serve either a structural or functional use in the cells. Bacteria thrive by four things oxygen, food (nutrients), warmth and time but two others can be moisture and acidity. Nutrients are essential for energy, nitrogen (for DNA and proteins), phosphorus (for energy), and others. Warmth is needed so the bacteria can stay warm. Oxygen is needed so the bacteria can halt energy and time is needed for the bacteria to complete binary fission over and over again. acidulousness is needed so the bacteria can survive in its environment.Highly base or acidic environments whitethorn harm the bacteria and hinder its lifespan. In order to survive and grow, microorganisms require a source of energy and nourishment. Bacteria are the most primitive forms of microorganisms b ut are composed of a great contour of simple and complex molecules and are able to carry out a wide range of chemical transformations. Depending on their requirements and the source of energy used they are classified into different nutritional groups. Most microorganisms grow well at the normal temperatures favored by man, higher plants and animals.Certain bacteria grow at temperatures (extreme heating plant or cold) at which few higher organisms can survive. Most bacteria grow best in an environment with a narrow pH range near neutrality between pH 6. 5 and 7. 5. Microbes contain approximately 80-90% water and I f placed in a solution with a higher solute concentration will lose water which causes shrinkage of the cell. Some bacteria have adapted so well to high salt concentrations that they actually require them for growth. north and phosphorus are specially critical because they often control the rates of photosynthesis.Carbon is significantly more abundant than either of the m and oxygen and sulfur are more abundant that phosphorous. Nitrogen and phosphorous are less available to plants relative to their growth requirements than are other elements. Phosphorus is often in short supply and limits plant and algae growth. Nitrogen is a major constituent of all proteins and of all living organisms. A lack of nitrogen can limit growth of plants, since nearly three quarters of its atmosphere consists of natural gas, N2. REFERENCES A New modality to Look at Microorganisms. (n. d). American Scientist, 93(6), 514.