For the enzyme-catalyzed reaction S ~ P, Keq = 5, which of the following curves best represents the change in [S] that occurs with time when S is added to a solution containing the appropriate enzyme?

#Question id: 460

#Unit 1. Structure and Function of Biomolecules

The hydrolysis of ATP to ADP has a △G°ʹ of -30 kJ/mol. If in an E. coli cell the concentrations of ATP, ADP and inorganic phosphate are 7.90 mM, 1.04 mM and 7.9 mM, respectively, which statement is true about the hydrolysis of ATP in the cell? (Assume a temperature of 298 K. R = 8.315 J/K-mol)

#Question id: 461

#Unit 1. Structure and Function of Biomolecules

The conversion of glucose-1-phosphate to glucose-6-phosphate by the enzyme phosphoglucomutase has a △G°ʹ of -7.6 kJ/mol. Calculate the equilibrium constant for this reaction at 298 K and a pH of 7. (R = 8.315 J/K-mol)

#Question id: 462

#Unit 1. Structure and Function of Biomolecules

The formation of acetyl CoA is driven to completion by

#Question id: 463

#Unit 1. Structure and Function of Biomolecules

Thioesters are similar to oxygen esters of carboxylic acids except that

#Question id: 464

#Unit 1. Structure and Function of Biomolecules

Calculate the equilibrium constant for an oxidation-reduction reaction involving the transfer of 1 mole of electrons with DE0ʹ= 0.25 V. (R = 8.315 JK-1mol-1, F = 96.48 kJV-1mol-1, T = 298 K)

#Question id: 465

#Unit 1. Structure and Function of Biomolecules

If the standard reduction potential of a certain half-reaction is -0.30 V, which statement below is true for this half-reaction to proceed as a reduction?