Which one of the following statements about Km is FALSE:
Group of answer choices
The specificity constant kcat/Km reflects both binding and catalytic event, therefore, it can be used to compare enzyme preferrences for different substrate.
Km reflects the binding affinity between an enzyme and a substrate.
The higher the Km, the more efficient the enzyme is.
Km corresponds to the substrate concentration at which the reaction rate is half-maximal.