Specific Activity of an Enzyme Refers to

Multiple Choice

Specific activity of an enzyme refers to

A) the ratio of units of enzyme activity (initial rate in the presence of excess substrate) to the weight of protein in a given preparation.
B) the catalytic activity of an enzyme under Vmax conditions.
C) the amount of enzyme transforming 1 mole of substrate per second under standard conditions.
D) the ratio of the activity of an enzyme in an unknown sample to that of a standard or known sample under identical conditions.
E) the activity of an enzyme under specific conditions of first-order kinetics.