A bacterial culture is grown using either octadecane (C18H38) or pentachlorophenol (C6HOCI5)) as the sole source of carbon and energy. The cell yield value is determined by dry weight analysis to be 1.49 for octadecane and 0.05 for pentachlorophenol. Using either octadecane or pentachlorophenol, please describe the steps taken (and the final result) showing what percentage of th substrate carbon will be found as cell mass and as CO2?
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- A bacterial culture is grown using either octadecane (C18H38) or pentachlorophenol (C6HOCl5)) as the sole source of carbon and energy. The cell yield value is determined by dry weight analysis to be 1.49 for octadecane and 0.05 for pentachlorophenol. Using either octadecane or pentachlorophenol, please describe the steps taken (and the final result) showing what percentage of the substrate carbon will be found as cell mass and as CO2? Please show all calculations and give correct answers.A bacterial culture is grown using either octadecane (C18H38) or pentachlorophenol (C6HOCl5)) as the sole source of carbon and energy. The cell yield value is determined by dry weight analysis to be 1.49 for octadecane and 0.05 for pentachlorophenol. Using either octadecane or pentachlorophenol, please describe the steps taken (and the final result) showing what percentage of the substrate carbon will be found as cell mass and as CO2? Please show all calculations and give correct answers. Please answer the question.You have decided to design a CSTR with recycle to degrade TCE (trichloroethylene) cometabolically by aerobic phenol-utilizing bacteria. To do this, you will feed phenol (C6H5OH; as a C source) and oxygen, along with required nutrients, to the reactor in order to grow a population of bacteria that can fortuitously degrade TCE. The problem is to first determine what mass of bacteria is required in the reactor to effect the TCE destruction desired, and then to determine how much phenol and oxygen must be fed to the reactor to maintain that population. The waste characteristics are as follows: Q0 = 5 m3/d, C0 = 100 μg/L TCE (influent concentration), X0 = 0 mg/L. The Xa selected for design is 1500 mg VSSa/L, and θx is 8 d. Kinetic coefficients for TCE decomposition are as follows: qTCE = 0.015 mg TCE/mg VSSa, KTCE = 0.5 mg/L. Kinetic coefficients for phenol degraders are Y = 0.8 g VSSa/g phenol, b = 0.1/d, q = 1 g phenol/g VSSa•d, and K(phenol) = 1 mg/L. 2.1. Determine the reactor size…
- Saccharomyces cerevisiae is used in the production of wine and beer, while Lactobacillus acidophilus is used in making yogurt. Explain why each is biochemically suited to the manufacturing of each of these products.The rate constant for the uncatalyzed reaction of two molecules of glycine ethyl ester to form glycylglycine ethyl ester is 0.6 M- 1s - 1. In the presence ofCo2 +, the rate constant is 1.5 x 106 M- 1s - 1. What rate enhancement does the catalyst provide?Why standard samples such as blue dextran/K2Cr2O7 are needed in isolation of alkaline phosphatase?
- The turnover number of the enzyme fumarase that catalyzes the reaction, Fumarate + H20 ===→ L-malate, is 2.5 x 103 S - l and Km = 4.0 X 10- 6 mol/L. Calculate the rate of conversion of fumarate to L-malate if the fumarase concentration is 1.0 x 1 0 - 6 mol/L and the fumarate concentration is 2.04 x 10- 4 mol/L.Chitinase is a protein that breaks down chitin, a primary component of the cell wall in fungi, scales in fish and exoskeletons of arthropods. The activity of chitinase extracted from a plant was shown to be optimum at pH 5. You were tasked to prepare 300 mL of 150 mM buffer solution for further analysis of the extracted chitinase. REAGENTS Ka 2.5M Acetic acid Solid NaOAc•3H2O [136.08g/mol] 1.76 x 10-5 2.5M NH3 Solid NH4Cl [53.49g/mol] 5.6 x 10-10 2.5M Lactic acid Solid sodium lactate [112.06g/mol] 4.0 x 10-5 5 M HCl 5M NaOH Pls show sol'ns 1. Given the following reagents, give the moles of each component (acid & base).2. What are the mass/volume of the components needed to prepare the buffer? 3. What will the pH of the buffer be if 1mL of 5 M NaOH was added?To purify a given enzyme from a crude extract that contains it, fractional precipitations, exchange chromatography are successively tested ionic and exclusion chromatography, with the results shown in the following table: Volume of dissolution Protein concentration Enzymatic activity (ml) (mg/ml) (U/ml) a) Calculate the percentage of recovery of the enzyme after each of the manipulations to which it has been subjected. b) Indicate if it is necessary to continue purifying the enzyme or if it is expected to have reached its electrophoretic homogeneity.
- How to prepare a 12 mL solution of 1 mM NaCl in deionized water if your precision balance has a lower limit of detection of 1 mg?The substrate which was used to investigate the enzymatic activity of wheat bran phosphatase was p-nitrophenyl phosphate. It is converted to p-nitrophenol and inorganic phosphate by this enzyme. P-nitrophenol has a pKa of 7.1 and is colorless, while its conjugate base, p-nitrophenolate has a yellow color. The enzyme assay was performed at pH 5.1 after the 0.5 N KOH is added at the end of each enzyme assay, the pH of the assay mixture is raised to 9.1. Why was the base added?Will the synthesis of 9,10-dihydroanthracene-9,10-α,β-succinic anhydride via Diels-Alder reaction occur faster under photochemical conditions? Explain.