н P OH `OH ÓH но OH write mechanisms for reaction shown by drawing each step. Not all cofactors may be indicated, use them as necessary. Disregard stereochemistry.
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- A biochemical reaction transfers 60 kJ mol-1(15 kcal mol-1) of energy. What general process most likely wouldbe involved in this transfer? What cofactor (or cosubstrate) likelywould be used? Which cofactor probably would not be used?Reactions taking place in dilute solution obey the rules ofsimple reaction kinetics because their rates depend on diffusion. How does this approach relate to investigations of enzymes in living cells?Suggest an appropriate reason for the observation : “On increasing temperature of the reacting system by 10 degrees, the rate of reaction almost doubles or even some times becomes five folds.”
- An enzyme contains an active site aspartic acid with a pKa = 5.0, whichacts as a general acid catalyst. On the accompanying template, draw thecurve of enzyme activity (reaction rate) versus pH for the enzyme (assumethat the protein is stably folded between pH 2–12 and that the active siteAsp is the only ionizable residue involved in catalysis). Briefly explain theshape of your curve.Analysis of the Temperature-Dependent Term of the rate of reaction Provide at least 3 chemical equations with a given activation energy and frequency factor. (endothermic reactions, exothermic reactions, reactions with high and low Eact , reactions with catalyst) provide equation problems only. no need to solve it.A simple enzymatic reaction proceeds as follows. E+S↔E.S→ E+P Derive the Michaelis–Menten equation for this reaction.
- Carboxylic acids, such as the one shown below, can be difficult to reduce Provide the name of a reductant A. Explain why this reductant is able to react with the carboxylic acid whereas others cannot (Hint: Draw and discuss the potential reactive intermediates/transition states).A biochemical reaction will proceed in the direction as written if: Group of answer choices H > 0. G = zero. H G > 0. GCellular pH is slightly alkaline (pH 7.4); Explain why a seemingly slight decrease in pH to 6.8 can have very serious consequences for the body, becoming fatal?
- Sodium fluoroacetate (FH2CCOO- Na+) is highly toxic. Patients with fluoroacetate poisoning accumulate citrate and fluorocitrate in their cells. Which enzyme is inhibited by fluoroacetate for this to occur? Explain."Enzyme immobilization confers greater stability to the enzyme"-Do you agree or disagree with the statement? With appropriate example justify your opinion. Why the material used to immobilize the enzyme must be inert?Reactants: Sodium Hydroxide (NaOH) Potassium Permanganate (KMnO4) Glucose (C12H22O11) What is the purpose of the sodium hydroxide in the redox reaction experiment?