Consider the following reaction catalyzed by Phosphopentose Epimerase at 37 °C. Xylulose 5-phosphate ---> Ribulose 5-phosphate At equilibrium, the ratio of Xylulose 5-P/Ribulose 5-P = 1/18.85 Calculate K'eq Type your answer...

Q2 CH,OH CH,OPO,2- H H OH H OH 0-PO,2- но но OH H. OH OH Glucose-1-phosphate Glucose-6-phosphate Calculate the standard free-energy change (AG°) fo the reaction catalyzed by the enzyme phosphoglucomutase. When at standard temperature (25 °C) and pressure, the equilibrium of each molecule is 1 mM glucose 1-phosphate and 19 mM glucose 6-phosphate. HINT: at 25 °C, RT = 2.479 kJ/mol

C6H12O6 + a*O2 + b*NH3 --> c*CH1.64O0.52N0.16 + d*CO2 + e*H2O + f*C2H5OH In the aerobic yeast growth process, overflow metabolism can be observed when the sugar feed rate exceeds the oxidizing capacity of the yeast. In this case, part of the substrate is treated anaerobically and the production of biomass is reduced and ethanol is formed. This can also be observed when the respiratory rate RQ goes above one. The chemical composition of this yeast is CH1.64O0.52N0.16 . The yield of ethanol from glucose is 0.14 g g-1 and the yield of biomass from glucose is 0.362 g g-1. Calculate the oxygen demand of the reaction. In this calculation, use the following rounded even values as atomic weights for all calculations:  C=12 g/mol, H=1 g/mol, O=16 g/mol ja N=14 g/mol.  So how many moles of oxygen are needed per mole of glucose?

Inositol hexaphosphate (phytic acid, InsP6) is converted to 5-InsP7 by the action of the enzyme IP6K using adenosine 5'-triphosphate (ATP) as the substrate. What is the byproduct (indicated by ?) in the reaction? 2-O3PO OPO,2- InsPs 2-O3PO 5-InsP7 IP6K OPO,2- 2-O3PO- FOPO32 0- FOPO,2 2-03PO- OPO,2 OPO,2- АТР ? adenosine adenosine 5'-monophosphate adenosine 5'-diphosphate adenine

If 0.1 M glucose-1-phosphate is incubated with phosphoglucomutase, the glucose-1-phosphate is transformed to an isomer. At equilibrium, the concentration of glucose- 1-phosphate is 4.5 x 10'M and that of the isomer is 8.6 x 10 M. Calculate K' and AGo" for this reaction (i.e., in the direction of product formation). (R = 8.314 J/mol K)

Calculate the ΔGo’ for the following reaction at 37 oC: Galactose + Glucose → Lactose    + H2O       K’eq = 0.002089

When the following reaction reached equilibrium the concentration of glucose 1-phosphate is 34mM, and the concentration of glucose 6-phosphate is 190mM. At standard temperatures and pressure, calculate the Keq and the ΔGo' glucose 6-phosphate <---(phosphoglucoisomerase)---> glucose 1-phosphate Keq=                                                         ΔGo' =

From data in the table, calculate the AG' value for the reactions. Reaction Phosphocreatine + H₂O → creatine + Pi ADP + P; → ATP + H₂O Fructose + P₁ → fructose 6-phosphate + H₂O Phosphocreatine + ADP → creatine + ATP AG'° = ATP + fructose → ADP + fructose 6-phosphate AG'° = AG'o (kJ/mol) -43.0 +30.5 +15.9 kJ/mol kJ/mol

The second step in the catabolism of most amino acids is the removal of the nitrogen atom from glutamate by oxidative deamination. In this reaction, glutamate is converted to an a-keto acid. Modify the structure to show the a-keto acid product. ?- || с I CH₂ I H₂N- & + remaining products enzyme CH₂ I CH₂ + NAD+ + H₂O CH₂ Incorrect Enter the chemical formulas for the remaining products. remaining products: NADH + H+ + NH Identify the enzyme that catalyzes the reaction. The enzyme that catalyzes the reaction is glutamate dehydrogenase. OH OH

1. The reaction catalyzed by aldolase splits fructose-1,6-bisphosphate (F16BP) into glyceraldehyde-3-phosphate (G3P) and dihydroxyacetone phosphate (DHAP). The AG°" for the reaction is 23.8 kJ/mole. If the concentrations of G3P and DHAP are 2.5 mM and 1 mM, respectively, what concentration of F16BP is needed for the reaction to be at equilibrium in a human cell?