5. (a) WITHOUT looking at the pke values, draw the structure of lysine (Lys) at pH 7. The group is CH(CH), () WITHOUT looking at the pk, values, is lysine isoelectric at pH 7? Explain () WITHOUT looking at the pk, values, drow the structure of phenylalanine (Phe) at H7 The group is CH.CH (G) WITHOUT looking pk, values, is phenylalanine soelectric o pH 7) (e) WITHOUT looking at the pots crow the structure of phenylalanin at pH WITHOUT Rockong pwers phenylalanine isclectric at H (a) brow the structure of the Is it trong Corsing the protect the TSHID Deltaco