a.a coenzyme allosteric inhibitor substrate

 intermediate e.a competitive inhibitor - ANSWERSb.How might a change of one amino acid at a

site, distant from the active site of an enzyme, alter an enzyme's substrate specificity?

 changing the enzyme's stability

 changing the enzyme's location in the cell

 changing the shape of an enzyme

 changing the enzyme's pH optimum

e.An amino acid change away from the active site cannot alter the enzyme's substrate - ANSWE...