In the conditions of a muscle cell recovering from severe exercise, would you expect the hydrolysis of one mole of ATP molecule to produce MORE or LESS energy? Circle one and explain your reasoning.
A. ∆G for the hydrolysis of one mole of ATP into ADP and Pi is −7.3 kcal/mol) under standard conditions (1 M concentration of all molecules, 25°C and pH = 7.0). That’s not bad, but things get more impressive under non-standard conditions: ∆G for the hydrolysis of one mole of ATP in a living cell is almost double the value at standard conditions, around −14 kcal/mol (−57kJ/mol).
B. More energy, because all muscle cells contain a high-energy compound called creatine phosphate which is broken down to make more ATP quickly. Creatine phosphate can supply the energy needs of a working muscle at a very high rate, but only for about 8–10 seconds.
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