<prompt> Inhibition of placental Alkaline Phosphatase by Phenylalanine is an example ofCompetitive InhibitionNoncompetitive inhibitionUncompetitive InhibitionAllosteric Inhibition  <response>: Placental PLAP and germ-cell GCAP alkaline phosphatases are inhibited uncompetitively by L-Leu and L-Phe. Ref: Katzung 12th ed. 