Question

Enzymes cannot make thermodynamically unfavorable reactions proceed. But they do lower the activation energy of a reaction in both directions. Sometimes the reaction is just too thermodynamically unfavorable during standard conditions. What is the strategy used by the cells to drive such reactions?

Answer 1

In the cell, energetically unfavorable reactions are often coupled with favorable ones, such that the new overall reaction is favorable.

Answer 2

The answer would be C.