Q. The catalytic efficiency of two different enzymes can be compared by the :

Q. The catalytic efficiency of two different enzymes can be compared by the :

A. Formation of the product

B. The pH optimum value

C. The Km value

D. Molecular size of the enzyme

Solution Correct option c

The catalytic efficiency of two different enzymes can be compared by comparing their K  value or Michaelis Menten constant. The Michaelis constant is the substrate concentration at which the reaction rate is at half-maximum. The Km describes the affinity of enzyme for a substrate molecule. Greater the affinity lower is the K_m value and sooner the V_max can be attained and vice versa.