In a reaction in which the rate of the reverse reaction is equal to the rate of the forward ...

In a reaction in which the rate of the reverse reaction is equal to the rate of the forward reaction, a state
  of __________ is attained.
  a. total entropy
  b. enthalpy
  c. thermodynamics
  d. dynamic equilibrium
  e. product reversibility

Question 2

An endergonic reaction can proceed only if it absorbs:a.
   more free energy than is released by a coupled exergonic reaction.
  b. less free energy than was released by a coupled endergonic reaction.
  c. less free energy than is released by a coupled exergonic reaction.
  d. the same amount of free energy that is absorbed by the enzymatic breakdown of proteins.
  e. energy from ADP, forming ATP