When a mixture of 3-phosphoglycerate and 2-phosphoglycerate is incubated at 25°C in the presence of the enzyme  phosphoglycerate mutase (which catalyzes the intervconversion of the two substances) until equilibrium is reached,  the final mixture contains 6 times as much 2-phosphoglycerate as 3-phosphoglycerate.  Which of the following statements is most nearly correct when applied to the reaction shown below: 3-phosphoglycerate ------> 2-phosphoglycerate (R=8.315 J/mole.K)   A. △G°' = +12.7 kJ/mole   B. △G°' = 0   C. △G°'  is incalculably large and positive   D. △G°' = -4.44 kJ/mole   E. △G°'  cannot be calculated from the information gven

The formation constants at 25°C for Fe(CN)4-6 and Fe(EDTA)2– are 1.00 x 1037 and 2.10 x 1014, respectively. Answer the questions below. 1) Calculate K under standard conditions for the reaction Fe(EDTA)2−(aq) + 6CN−(aq) ----> Fe(CN)4−6​(aq) + EDTA4−(aq) 2) Calculate ΔG° for the reaction. (kJ/mol)

What is the predominant ionic form of ribose-5-phosphate at physiological pH? Would ribose-5-phosphate be a good biological buffer for cells?

Polymer beads (resin) made of DEAE (diethylaminoethyl) cellulose are packed in an ion exchange column. The total mass of beads in the column is 8.47 kg. On average, each bead weighs 0.0023 g and has an average of 18.4 * 10° positively charged amine groups that can adsorba negatively charged protein that passes through the column. A solution containing 2.07 mg/L of a protein is maintained at pH 6.3 and is passed through the ion exchange column at 0.215 L/min. The protein has a molecular weight of 154,000. The pk, of the amino groups on DEAE cellulose is 7.1, and the pl of the protein is 5.6. 2. A. How long can the column be operated before reaching 80% capacity (i.e., 80% of the amino groups on DEAE are bound to the protein through an ionic bond)? You may assume that one protein attaches to one + charge on the beads (although it's possible that proteins attach to more than one + charge). B. After reaching 80% capacity, explain what you would do to release the protein attached to the…