What Is the Effect of Poisons Such as Mercury in Antimicrobial

What is the effect of poisons such as mercury in antimicrobial products? Recall that mercury oxidizes the S-H groups of the amino acid cysteine in proteins, converting it to cystine.

A) Competitive inhibition-the mercury binds to the active site of a bacterial enzyme, inhibiting the function of the enzyme.
B) Reversible non-competitive inhibition-the mercury binds to an allosteric site on a bacterial enzyme, changing the active site shape temporarily and inhibiting enzyme function.
C) Irreversible non-competitive inhibition-the mercury binds to an allosteric site on the enzyme and permanently changes the shape of the active site, so that the enzyme becomes nonfunctional.
D) Reversible non-competitive inhibition-the mercury binds to the active site of an enzyme temporarily, inhibiting its function.
E) Competitive inhibition-the mercury binds to an allosteric site on a bacterial enzyme, blocking attachment of the appropriate substrate and inhibiting the function of the enzyme.