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Salt Treatment
Tap Water Treatment
Distilled Water Treatment
Which of these experimental conditions is hyprtonic and which is isotonic?
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- Before inoculating and pouring molten nutrient agar into a plate, why must the agar first be cooled to 50°C?Explain this example of the following water quality serial dilution. Note the dilution factors and how you would calculate #’s from the incubated plates. ……A serial dilution yielded TNTC in the 1:1 plate and the 1:10 plate, 10 cfu’s in the 1:100 plate and 1 cfu’s in the 1:1000 plate .Explain why high concentration of suger, salt and acid do not support microbial growth, only it have to be in neutral level?
- Which is more Suitable for long-term storage: agar slant or plate? Explain why?What is the EFFECT and RATIONAL of Molten agar mixed with bacterial suspension has temperature higher than 45 oC.Suspend 28.0 grams in the 1000 mL distilled water. Heat to boiling to dissolve the medium completely. Sterilize by autoclaving at 15 lbs pressure (1210C) for 15 minutes. Cool to 45-500C. If desired the medium can be enriched with 5-10% blood or other biological fluids. Mix well and pour into sterile Petri dishes. 1. Determine the amount of dehydrated medium needed to prepare 50 nutrient agar plates. Include amount for 2 additional plates as excess to compensate for compounding losses.
- What is biochemical oxygen demand (BOD) test? At what stage of Sewage treatment this test is performed? BOD level of three samples of water labelled as A, B and C are 30 mg/L, 10mg/L and 500 mg/L respectively. Which sample of water is most polluted?Describe how you would prepare the required dilution series using the least amount of dilutionwaterHow might incubation of plates at 37°C influence theresults of the quantitative dilution and plating of thecoconut water samples?
- How is this temperature dependence exploited to purify solids through recrystallization?AY AY * 00 HI T 00 2 3. ment10: Connect Regis.. M https://Ims.mh.. nemical Content of Media i Saved Help Save & Exit Chec Chemically defined medium Complex medium 2 Enriched medium Fastidious Heterotroph 9 Autotroph Match each of the options above to the items below. Uses inorganic carbon as a carbon source for building its own organic molecules. A type of organism that has complex nutrient requirements and requires a nutritionally dense environment. A media containing extracts from other other organisms. A medium with specifically added nutrients to enhance the growth of fastidious organisms. An organism that uses organic carbon as its carbon source. A medium of which the exact chemical composition is known. MacBook Air DD F7 000 000 F2 F4 F5 F8 %23 2$ 4. 9- } 1 Y | 7.Describe how you would prepare the required dilution series using the least amount of dilution water