Which amino acid has the highest pKa value?
Arginine is obtained by applying the relevant formula or quantitative relationship to the given parameters. In Amino_Acids_Structure, numerical problem-solving requires understanding the mathematical relationships between biological variables. The calculation involves substituting the provided values into the appropriate equation and solving systematically. The other options (Histidine, Lysine, and Glutamate) result from common calculation errors such as using incorrect formulas, misidentifying variables, inverting ratios, or making arithmetic mistakes.
Ref: Campbell Biology, Urry et al., 12th Ed.