For the reaction given below, assume that the standard change in free energy has a positive value. A + B (forward and reverse arrows) C + D
Changing the conditions of the reaction can alter the value of the change in free energy (?G). Sort the following conditions as to whether each would decrease the value of ?G, increase the value of ?G, or not change ?G for the reaction. For each change, assume that the other variables are kept constant.
Box #1 Decreasing ?G
Box #2 Increasing ?G
Box #3 No effect on ?G
Increasing [C] and [D]
Increasing [A] and [B]
adding a catalyst
coupling with ATP hydrolysis