Consider the following structure. CO₂CH2CH3 CO₂CH2CH3 This substance could be produced by the reaction of the following diene and dienophile. diene + dienophile H CO,CH,CH3 སངས་ CH3CH₂O₂C True False
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- MATCH a structure or term from the following list with each description below. Place the letter of the structure or term in the blank to the left of the description. The reactive electrophile in Friedel-Crafts acylation reactions. [Choose ] R3C+ The electrophile in aromatic +NO2 nitration. electron-withdrawing +NO Groups which activate aromatic rings towards electrophilic substitution. Groups which activate aromatic rings towards nucleophilic substitution. electron-donating benzyne Meisenheimer complex [Choose ] Intermediate in the elimination- addition mechanism of nucleophilic aromatic substitution. [Choose ]Write the correct order of the following structures: To select the correct order start from the first steps of the primary metabolite. A В 1 Shikmic acid corismic acid 3 tyrosine 4 para-hydroxyphenylpyruvic acid 5 3-deyhydroqunic acid prephenic acid 7 erthrose-4-phosphate 8 photosynthesis 9. CO2 10 cynogenic glycosideA 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.A bacterial culture is grown using either octadecane (C18H38) or pentachlorophenol (C6HCl5O) 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.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 the substrate carbon will be found as cell mass and as CO2?
- The photosynthetic process used by the green sulfur bacteria, under anaerobic conditions, is best represented by which of the following balanced equations? cell bio 6CO2 + 12H2S C6H12O6 + 6S2 + 6H2O C6H12O6 + C6H12O6 C12H22O11 + H2O 6CO2 + 12H2O C6H12O6 + 6O2 + 6H2O C12H22O11 + H2O C6H12O6 + C6H12O6 C6H12O6 + 6O2 + 6H2O 6CO2 + 12H2OPlease name the missing product marked x in this reaction H-Q АТР + C--0 - X + ADPWhich of the compounds shown below exhibit a high negative free energy of hydrolysis equal to or larger than the free energy of hydrolysis for the phosphoanhydride of ATP? (Choose all that apply) В Α HPΗ Ho HO HO H2N-CH-C CH2 H2N-CH-C CH2 CH2 H2N-CH-Ö CH2 C CH2 D E O A O B O E O=p-00 O=p-00 O=-00 O=0-00 O=L-00
- Aerobic degradation of an organic compound by mixed cultureof organism in wastewater can be represented by following reaction. C3H6O3 + a O2 + b NH3 → c C5H7NO2 + d H2o + e CO2 A. Determine a, b, c, d and e, if YX/S = 0.4 d X/g S. B. Determine the yield coefficients YX/O2 and YX/NH3. C. Determine the degree of reductions for the substrate, bacteria and RQ for the organismsguanosine and a water bind in the active site, does not matter in which order. The scissile N-1 glycosidic bond between the anomeric carbon and N9 of the base is broken resulting in an oxocarbenium transition state. The leaving group electrons are not protonated, but instead swing up to form a double bond between N9 and C8. The double bond that is already present on the purine swings out on N7 and is protonated by an active site histidine acting as a general acid. An active site aspartate acts as a general base, and deprotonates the water substrate molecule. The deprotonated water is then free to attack the transition state in a manner that will generate an αribose. Draw the active site and show how the mechanism works. You will need to draw 3 or 4 different active site “snap-shots” to show the entire process. Be sure to clearly show the transition state and how it might be stabilizedExample 14.6 The oxygen requirement for cell growth in glueose can be represented by the following equation (Mateles, 1971) 32NC+8(Nh2)+16(No2) Fx/sM +yo2 – 2.67yc + 1.714YN2 – 8y H2 ro2 = In which ro2 is the oxygen required for each gram of cells produced, N stands for no. of atoms present in each molecule substrate, y stands for mass fractions and M is the MW of the substrate. The yeast cell may be considered to be CH1.800.5NO.2. Calculate rO2 if the yield factor (Yx/s) is 0.46g of cells produced for each gram of substrate consumed.