Enzymes are important biological catalysts because they:a. supply the energy to initiate a ...

Enzymes are important biological catalysts because they:a.
   supply the energy to initiate a biochemical reaction.
  b. increase the free energy of a biochemical reaction.
  c. lower the entropy of a biochemical reaction.
  d. decrease the enthalpy of a biochemical reaction.
  e. lower the activation energy of a biochemical reaction

Question 2

Which of the following statements concerning enzymes is FALSE?
  a. Each enzyme has an optimal temperature.
  b. Each enzyme has an optimal pH.
  c. Most enzymes are highly specific.
  d. Some enzymes require cofactors.
  e. Most enzymes are RNA molecules