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.Two factors affecting the amount of usable nitrogen in thesoil are a limited number of nitrogen-fixing bacteria and_________________________.n terms of oxygen requirements, what type of organism would most likely be responsible for a foodborne illness associated with canned foods?
- holsappleeus scarius is a normal flora of the human intestenal tract. its facultative anaerobe capable of catabolizing carbohydrates. which conditions will give them the most growth?Provide the conditions (e.g., intrinsic properties, storage conditions, etc.) that will make the recovery of the following microorganisms in commercially sterile foods acceptable: a) Obligate thermophilic sporeforming bacteria b) Acid-tolerant microorganisms c) Mesophilic or thermophilic sporeformersCitrate Broth and Citrate Agar are a type of media that is not described in this lab. However, based on your knowledge of agar and broth media, do you think Citrate Broth and Citrate Agar contain the same effective nutrients? Explain your answer.
- The bacterium that causes Hansen’s disease (leprosy), Mycobacterium leprae, infects mostly the extremities of the body: hand, feet, and nose. Would this bacteria’s optimum temperature of growth be above or below the core temperature of the human body?Foodborne illness is associated with many different types of foods. Explain what the oxygen requirements would be for microbes that cause foodborne illness associated with canned foods and why it helps in this situation.Microorganisms are often grouped according to their optimum growth temperatures. Which groups are most likely to spoil refrigerated foods?
- The following four chemicals commonly found in defined growth media contain all of the necessary atomic macronutrients, namely C, O, N, H, S and P, which microbes require: glucose (C6H12O6), K2HPO4, MgSO4.7H2O, and (NH4)HPO4. Part a. Create a simple diagram to map which growth media chemical contributes atoms to which of the four biological macromolecules (amino acids, polysaccharides, lipids, and ribonucleic acids). Part b. Consider a cell culture broth that originally (before inoculation with cells) contains 5.0 gr/L glucose (C6H12O6), 1.2 gr/L K2HPO4, 0.3 gr/L MgSO4∙7H2O, and 1.0 gr/L (NH4)HPO4. Create a table showing how much of each of the different atoms (C, H, O, K, P, Mg, S, N) are available for incorporation into cell macromolecules (assume 50% of the glucose is catabolized, while the remainder goes for energy (respiration). Express your answers with units of grams of atomic species / liter of culture broth.The normal human body temperature is 37oC. This represents the optimal enzyme activity within the body. Explain the mechanism and reason why body temperature rises to 39oC when some systematic or superficial infections occur.Carbohydrates and lipids are composed of the same chemical element, but in different proportions. Both are used primarily as energy source for metabolic process. Which type of biomolecule has the higher calorie content per gram? Explain briefly.