【健身补剂】支链氨基酸-BCAA详解

SOLVED: BiochemThe amino acid histidine (His) plays an important role in manybiological reactions as part of the protein's active site. The pKafor the protonation of His to form HisH = 6.0.a. When pH = 7.4 (physiological pH), what is the fraction oftotal histidine that will be in the HisH form?b. If the chemical environment shifts the pKa of a histidineresidue from 6.0 to 6.8, what fraction of the histidine residueswill now be in the HisH form?Please show all work.

The amino acid histidine has ionizable groups with pKa values of 1.8,6.0, and 9.2, as shown (His m imidazole group). A bobohemist makes up 100  mL of a 0.10  m solution of histidine at a pH of 5.40. She then adds 40  mL of 0.10  m HCl. What is the pll of the resulting solution? | Numerade

Histidine is an important catalytic residue found at the active ... | Channels for Pearson