Question

which effector of enzyme activity is least likely to be utilized by cells?
competitive inhibitors
allosteric activators
allosteric inhibitors
irreversible inhibitors
noncompetitive inhibitors

Explanation:

Cells need to regulate enzyme - activity in a flexible way. Irreversible inhibitors permanently inactivate enzymes. This is not favorable for cells as they often need to adjust enzyme activity up or down as per metabolic needs. Competitive, allosteric (both activators and inhibitors), and non - competitive inhibitors allow for reversible regulation of enzyme activity.

Answer:

Irreversible inhibitors