TLS Online TPP Program

#Question id: 635


The enymatic rate constant (kcat/Km) of orotidine 5ʹ-phosphate decarboxylase is 6 x 107 M-1s-1 and the nonenzymatic rate constant (kn) is 3 x 10-16 s-1.  What is the value of the enzymeʹs catalytic proficiency?

#Section 2: General Biology
  1. 2 x 1023 M-1

  2. 2 x 1023 M

  3. 12 x 10-9 M-1s-2

  4. 8.3 x 107 Ms2