#Question id: 403
#Unit 1. Molecules and their Interaction Relevant to Biology
For the reaction A -> B, DG'° = –60 kJ/mol. The reaction is started with 10 mmol of A; no B is initially present. After 24 hours, analysis reveals the presence of 2 mmol of B, 8 mmol of A. Which is the most likely explanation?
#Question id: 404
#Unit 1. Molecules and their Interaction Relevant to Biology
When a mixture of 3-phosphoglycerate and 2-phosphoglycerate is incubated at 25 °C with phosphoglycerate mutase until equilibrium is reached, the final mixture contains six times as much 2-phosphoglycerate as 3-phosphoglycerate. Which one of the following statements is most nearly correct, when applied to the reaction as written? (R = 8.315 J/mol·K; T = 298 K) 3-Phosphoglycerate -> 2-phosphoglycerate
#Question id: 405
#Unit 1. Molecules and their Interaction Relevant to Biology
When a mixture of glucose 6-phosphate and fructose 6-phosphate is incubated with the enzyme phosphohexose isomerase (which catalyzes the interconversion of these two compounds) until equilibrium is reached, the final mixture contains twice as much glucose 6-phosphate as fructose 6-phosphate. Which one of the following statements is best applied to this reaction outlined below? (R = 8.315 J/mol·K; T = 298 K) Glucose 6-phosphate -> fructose 6-phosphate
#Question id: 406
#Unit 1. Molecules and their Interaction Relevant to Biology
Hydrolysis of 1 M glucose 6-phosphate catalyzed by glucose 6-phosphatase is 99% complete at equilibrium (i.e., only 1% of the substrate remains). Which of the following statements is most nearly correct? (R = 8.315 J/mol·K; T = 298 K)
#Question id: 407
#Unit 1. Molecules and their Interaction Relevant to Biology
The reaction A + B -> C has a DG'° of –20 kJ/mol at 25° C. Starting under standard conditions, one can predict that:
#Question id: 408
#Unit 1. Molecules and their Interaction Relevant to Biology
Which of the following compounds has the largest negative value for the standard free-energy change (DG'°) upon hydrolysis?