Question

The following parameter(s) of an enzyme-catalyzed reaction depend(s) on enzyme concentration:

A) Km (Michaelis constant)

B) Vmax (maximum velocity)

C) kcat (turnover number)

D) A and B

E) B and C

Km is the equivalent of:

A) Substrate concentration at Vo

B) Substrate concentration when Vmax is reached

C) Substrate concentration when 1/2 Vmax is reached

D) Product concentration when 1/2 Vmax is reached