Given an enzyme with Km of 0.25mM, at what substrate concentration will the velocity of the enzyme reach 1/2 of the Vmax? (Vmax = 100 mmol/s)

Given an enzyme with Km of 0.25mM, at what substrate concentration wi

1.	Given an enzyme with Km of 0.25mM, at what substrate concentration will the velocity of the enzyme reach 1/2 of the Vmax? (Vmax = 100 mmol/s)
A.	0.5 mM
B.	0.25 mM
C.	0.75 mM
D.	25 mM
Answer» C. 0.75 mM