Why do boiled and unboiled potato extracts differ in their action on hydrogen peroxide? Explain in 1-3 sentences
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Why do boiled and unboiled potato extracts differ in their action on hydrogen peroxide? Explain in 1-3 sentences
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- Identify the function of the following enzymes: Superoxide dismutase (SOD)Sydney Brenner isolated Salmonella typhimurium mutants that were implicated in the biosynthesis of tryptophan and would not grow on minimal medium. When these bacterial mutants were tested on minimal medium to which one of four compounds (indole glycerol phosphate, indole, anthranilic acid, and tryptophan) had been added, the growth responses shown in the following table were obtained. Mutant Minimal medium Anthranilic Indole glycerol acid Indole Tryptoph phosphate trp-1 trp-2 trp-3 trp-4 trp-6 trp-7 trp-8 trp-9 trp-10 trp-11 - Give the order of indole glycerol phosphate, indole, anthranilic acid, and tryptophan in a biochemical pathway leading to the synthesis of tryptophan. Indicate which step in the pathway is affected by each of the mutations. + 1 + 1 IIIn the isolation of glycogen from liver, why it is necessary to filter the solution while it is still hot? Explain in 1-3 sentences
- Name the components of the hexose-monophosphate pathway that detoxify peroxide and the process that accomplishes detoxification.A genetically modified bacterium was cultivated to produce 1,3-propanediol (1,3-PDO), and the following yields were obtained: YX/S = 0.106 gX/gS and YP/S = 0.28 gP/gS. Knowing that the culture medium was formulated with glucose, ammonia and some mineral salts, and the cultivation was carried out under aerobic conditions, answer:a) What is the oxygen demand in this process?b) What is the maximum theoretical yield of 1,3-PDO in this process?c) Projecting the scale-up, what cell concentration must be reached to obtain 10 kg of 1,3-PDO in a batch reactor with 1 m3 of culture?A mixture of dipeptides consisting of Lys-Gly, Thr-His, Ser-Leu, Glu-Gln was applied to column packed with cation-exchange resin at pH 6.0. Which of these dipeptides would be eluted from the column first? O Lys-Gly first O Thr-His first O Ser-Leu first O Glu-Gln first OA mixture of Thr-His and Ser-Leu first
- Describe the following through Venn diagram a) Alcohol fermentation and Lactate fermentation. b) DNA polymerase and RNA polymerase c) Active site and allosteric siteYou inoculate two test tubes with the same amount of identical growth medium and with the same number of identical yeast cells and grow these cells under identical conditions except for the presence or absence of oxygen. b) The cells of both cultures convert glucose to pyruvate via glycolysis, and then further metabolize pyruvate. Are the cells of both cultures able to obtain the same amount of ATP from glycolysis? Explain. Under anaerobic conditions, the carbon from pyruvate will ultimately be found in which molecule? Under aerobic conditions, the carbon from pyruvate will ultimately be found in which molecule?