Enzymes and Kinetics - Medical Science

Q1:

When [S] = 0.1 *KM, the velocity of an enzyme catalyzed reaction is about:

A 0.1 * Vmax

B 0.3 * Vmax

C 0.5 * Vmax

D 0.7 * Vmax

ANS:A - 0.1 * Vmax

Explain the answer.