ar contains salt to prevent the growth of most microbes and mannitol plus a pH indicator to detect mannitol fermentation. Which component of mannitol salt agar makes it a selective medium?
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Mannitol salt agar contains salt to prevent the growth of most microbes and mannitol plus a pH indicator to detect mannitol fermentation. Which component of mannitol salt agar makes it a selective medium?
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- Is the mannitol salt agar (MSA) a complex or defined medium? Explain based on Composition. What kind of media based on what kind of microorganisms it allows to growMacConkey agar inhibits the growth of Gram-positive bacteria while encouraging the growth of Gram-negative bacteria. It also can determine if some bacteria use lactose. Define what type(s) of media MacConkey agar is, using as many terms in the answer list as are applicable.Describe how a Triple Sugar Iron agar tube would appear if the following situation was true. Please note that all items in the following list are occurring in the same tube of agar. 1. Positive for glucose fermentation 2. Negative for lactose and sucrose fermentation 3. Positive for H2S production 4. Negative for gas production
- Agar is a solidifying agent used in media preparation. What makes it ideal for cultivation of microbes?Of what practical importance are air borne microorganisms to the laboratory workers? What precautions should be taken to control laboratory contaminants? Why are petri dishes incubated in an inverted position? Of what advantage is the using a solid and a liquid medium?Microbes are cultured for various industrial products. How growth curve can be used for maximum product formation?
- The following ingredient list represents which type of growth media? Beef extract 1.5 g Yeast extract 3.0 g Peptone 6.0 g Glucose 1.0 g Agar 15.0 g water 1000 ml pH 6.6how do microorganisms such as bacteria eliminate harmful reactive oxygen species? Nitrate reduction to nitrite is indicated by the formation of a pink to red colour after addition of nitrate test reagent. However, if a culture does not produce a colour change several posibilies exist. Explain.Is the eosin methylene blue agar? (EMB) a complex or defined medium? Explain based on its composition. What media is MSA explaining based on what kind of Organisms it allows to grow
- Why does motility media contain a lower amount of agar than ordinary agar?EMB agar inhibits the growth of Gram-positive bacteria while encouraging the growth of Gram-negative bacteria. It also can determine if some bacteria use lactose. It is particularly effective at determining if E. coli is present in a specimen. Define what type(s) of media EMB agar is, using as many terms in the answer list as are applicable.A culture consisting of 100 litres of nutrient medium containing 12 g l-1 of growth limiting substrate is inoculated with 10g of bacteria in a batch fermenter. The yield of biomass from substrate is 0.05 g g-1 . The maintenance coefficient is 2.0 g g-1 h -1 . The specific rate of product formation due to maintenance is 1.0 h-1 . The maximum specific growth rate of the organism is 0.3 h -1 . YPX= 7.7 and product formation is directly linked with metabolism. a) What is the time required to produce 15 g of biomass? !!!!! ANS IS 3.07 HRS!!!! STEPS on how to reach this please