The basic nutritional requirements of microorganisms are an energy or carbon source,an available nitrogen source, inorganic elements, and for some cell types, specific growth factors. Explain this statement
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The basic nutritional requirements of microorganisms are an energy or carbon source,an available nitrogen source, inorganic elements, and for some cell types, specific growth factors.
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- Explain this The basic nutritional requirements of microorganisms are an energy or carbon source, an available nitrogen source, inorganic elements, and for some cell types, specific growth factors.Identify external sources of energy for microbial cells, and the forms of energy available within the cell. Describe different types of energy-requiring activities and how they are related to catabolism and biosynthesis.Provide an example of an organism within each of the four main nutritional categories of microbes and describe how each obtains its essential nutrients. Provide evidence in support of or refuting the following statement: Microbial life can exist in the complete absence of both sunlight or organic nutrients. Polymerase chain reaction (PCR) is a technology that requires high temperatures to reproduce DNA fragments. Explain why the discovery of thermophilic archaea and their associated DNA polymerases was critical to the success of this technique. Summarize how the electron transport chain functions to produce ATP in a bacterial cell versus eukaryotic cell. Explain whether or not the term chemiosmosis accurately illustrates this process.
- 21) a decrease in cell mass, reduction, is observed when which of the following conditions are met. a) abundant energy b) abundant amino acids c)growth factors d) all of these e)none of theseEssential nutrients A) O are represented by components such as carbon B)O are those that a cell cannot make and must obtain from its environment C) O are only required in very small quantities, on the order of micrograms per liter, D) O can be synthesized by the cell E) O two of the above.All of the following are ways microorganisms adapt to limited nutrients except: synthesize increased amount of enzymes for uptake and metabolism of limited nutrients form metabolically active highly resistant endospores synthesize enzymes needed to use a different nutrient acetic acid adjust the rate at which they metabolize nutrients
- Differentiate the growth curve exhibited by the same inoculum under the following conditions. Draw and label the parts of your growth curve. A). If it is exponentially growing and inoculated in the same nutritious medium under the same optimum conditions. B). If it is taken from an old culture and inoculated into the same nutritious medium and incubated under the same optimum conditions in (A). C). If it is taken from an old culture and inoculated to a different and less nutritious medium and incubated under the same optimum conditions as (A).Microbes are exposed to a wide variety of environmental factors that affect growth and survival. By giving two (2) examples, discuss how the microbial survival in various environmental conditions has been used to understand its ability to make flavorful and long shelf-life type of foods.Identify, by metabolic type, the microorganisms responsible for carbon and nitrogen fixation, and the mineralization of organic carbon and nitrogen under oxic and anoxic conditions
- Why are some microorganisms capable of utilizing certain carbohydrates and some are not?If the result of an unknown bacteria is “poor growth” and “red growth,” can this result be interpreted as “organism does not ferment mannitol?” Explain why or why not. If the result of an unknown bacteria is “good growth” and “yellow growth,” is the unknown bacteria more likely Staphylococcus aureus or Staphylococcus epidermidis?describe the production of soy sauce and explain the role of each microorganism in each stage of production.