The K_M is A) equal to the product concentration at initial reaction conditions. B) equal to the substrate concentration when the reaction rate is half its maximal value. C) proportional to the standard free energy. D) All of the answers are correct. E) None of the answers is correct.

Question

Quizplus · Accepted Answer

The K_M, often denoted as $K_m$ or the Michaelis constant, is equal to the substrate concentration when the reaction rate is half its maximal value. This constant is a key parameter in enzyme kinetics, describing the substrate concentration at which the reaction rate is 50% of the maximum rate. It does not directly relate to product concentration at initial reaction conditions or to the standard free energy.

The KM Is

The K_M Is