effects:neuromuscular hyperexcitability,muscle tetany, suffocation by laryngospasm ??? ??? ??? inorganic phosphate _____ is necessary for the synthesis of nucleic acids and phospholipids, ATP, GTP, and cAMP; activates many metabolic pathyways by phosphorylating such substances as enzymes and glucose; and it is an important acid-base buffer ??? ??? ??? parathyroid hormone phosphate levels are regul