Which of the following isn’t a definition of the steady state approximation? Select one: a. The enzyme can’t be created or destroyed. b. The enzyme and substrate are fused into the enzyme-substrate complex (ES) for the duration of the measurement period. c. The ES complex can’t create products or reactants. d. All of the above are true. e. None of the above are true.

Which of the following isn’t a definition of the steady state approximation?
Select one:
a. The enzyme can’t be created or destroyed.
b. The enzyme and substrate are fused into the enzyme-substrate complex (ES) for the duration of the measurement period.
c. The ES complex can’t create products or reactants.
d. All of the above are true.
e. None of the above are true.

Answer

• e. None of the above are true.
  Explanation:
  Steady-state approximation derives the rate law, assuming that as intermediates are generated, they are consumed quickly enough to retain the same concentration. According to the steady-state approximation, the concentration of the intermediate [ES] stays the same while concentration of product and reactants keep changing.