All of the following are ways in which enzymes are regulated by the cell EXCEPT
A) by feedback inhibition.
B) a gene coding for the enzyme may be turned off.
C) a heavy metal (such as lead) may block the enzymes non -active site.
D) by first synthesizing the enzyme in an inactive form.

Question

Quizplus · Accepted Answer

Heavy metals such as lead often inhibit enzyme activity by binding to the active site or other critical sites necessary for enzyme function, not the non-active site. This is not a normal regulatory mechanism used by cells but rather a form of poisoning or inhibition. Options A, B, and D are all legitimate ways cells regulate enzyme activity.

All of the Following Are Ways in Which Enzymes Are