Q: A particular enzyme-catalyzed biological reaction (Reaction 1) in humans takes the substrate A and converts it to B. The ΔG is -100 kJ/mol. A different enzyme is later found which also has A as a substrate (Reaction 2). The identity of the product from this different enzyme is not recorded. It is found that the ΔG for this new reaction is -120 kJ/mol. Which of the following holds true?
A		Reaction 2 must run faster kinetically than Reaction 1
B		The second enzyme is more efficient at converting A to B due to the larger decrease in free energy
C		Reactant A can bind to 2 enzymes at a time
D		The product of Reaction 2 cannot be B

Thermochemistry | Chemical Kinetics |