1. What processes maintain the cellular concentration of A±P? Be concise.

2. Why don’t “high-energy” compounds such as phosphodiesterase and phosphorescent break down quickly under physiological conditions?

3. A metabolic reactionary↔ Has ∆G°’ = 7.5 k/molar) Calculate Forsake the reaction at 25°Cb) Calculate ∆G for the reaction at 37°C, when [A] = 0.5 mm and [B] = 0.1 mm. Is the reaction spontaneous under these conditions?c) How can the reaction's direction be changed in the cell (without changing ±)?

4. ±he amount of A±P in muscle can maintain activity for about a second. Create phosphate (invertebrate muscle) serves as a store of high-energy phosphor groups that can be transferred toad P. Predict whether create kinase will operate in the direction of A±P synthesis or photosynthesis at 25°C, when [A±P] = 4 mm, [ADP] = 0.15 mm, [phosphorescent] = 2.5 mm and [create]= 1 phosphorescence + ADP ↔ create + A±P[∆G°’ you can calculate this from values on the table - next page]

5. ±he following reaction takes place during fa²y acid biosynthesis.1