All Are True for K_cat EXCEPT

Multiple Choice

All are true for k_cat EXCEPT :

A) referred to as the molecular activity of the enzyme.
B) called the turnover number of the enzyme.
C) measures the maximal catalytic activity or kinetic efficiency of an enzyme.
D) defines the number of substrate molecules converted into product/enzyme molecule/unit of time when the enzyme is saturated with substrate.
E) all are true.