Solutions of this ion turn green after adding ammonium heptamolybdate.
Solutions of this ion turn green after adding ammonium heptamolybdate. During Maxam-Gilbert sequencing, this ion is radioactively labeled and incorporated into cells. Two of these ions linked together are given the prefix "pyro." Salts of this anion and chloride compose a common biological buffer that's isotonic to blood. This fully deprotonated molecule has three (*) pKa values at 2.1, 7.2, and 12.7. This ion is called "inorganic" when it's a monomer. The first step of glycolysis attaches this tetrahedral ion to glucose through the enzyme glucokinase. It comprises the polar head groups in the cell membrane, and it links sugars in the backbone of DNA. For 10 points, name this ion with a negative-three charge and four oxygen atoms bonded to a central phosphorus.
Solutions of this ion turn green after adding ammonium heptamolybdate.
phosphate ion [or PO43- until "phosphorus" is read]