The purpose of coupling metabolic reaction is to enable an
     The purpose of coupling metabolic reaction is _____  to enable an endothermic reaction to become exothermic  to enable an exothermic reaction to become endothermic  to enable the reaction to proceed  A and C  B and C 
  
  Solution
A and C
Generally the exergonic reaction of ATP hydrolysis is coupled with the endergonic reactions, so that the endergonic reactions proceed for completion.

