In a Comparison of Allosteric and Non-Allosteric Enzymes

Question

In a comparison of allosteric and non-allosteric enzymes
A) it is always possible to define a KM
B) it is always possible to define a Vmax
C) competitive inhibition is always a possibility
D) much of the terminology is completely unchanged

Accepted Answer

The term "K_M" is specific to allosteric enzymes and refers to the protein's affinity for the substrate at both the active site and regulatory site. Non-allosteric enzymes do not have a regulatory site, so this term does not apply to them. However, the term "V_max" is a more general term used to describe enzyme kinetics and can apply to both allosteric and non-allosteric enzymes.