The Michaelis constant,Km,is equal to the ________.
A)maximum velocity that any given enzyme reaction can achieve
B)substrate concentration which gives the best enzyme assay for an enzyme reaction
C)substrate concentration when the rate is equal to half its maximal value
D)maximum velocity divided by two

Question

Quizplus · Accepted Answer

The Michaelis constant, Km, is defined as the substrate concentration at which the reaction rate is equal to half its maximal value. This means that at higher substrate concentrations, the reaction rate approaches its maximum velocity (Vmax), making choices A and D incorrect. Choice B is not a correct definition of Km.

The Michaelis Constant,Km,is Equal to the ________