Question

Attempt 2 Modify the structures (if necessary) to show the predominant form of the amino acid tyrosine at each pH. Be sure to include the proper number of hydrogen atoms on heteroatoms and the correct formal charges on atoms. At PH 2.9 At pH 13.8 Select Draw Rings wore Select Draw Rings More Erase CHNO - Qlala ca - Qala

Answer 1

OH PK1 - 2.2 o base form 9 base form O= C O= C 0=( PK,9.1 HN—CH CH HINCH acid form H2N- base form CH2 CH2 CH2 CH С. HC SCH нс . сн HC SCH HỎ 2CH CH HỎ, HC CHI OH PKR = 10 | OH acid form O base form Tyrosine at pH 13.8 PK value of Tyrosine Tyrosine at pH 2.9 if pH>pK the predominant form will be base form if pH <pK the predominant form will be acid form