Question

1. although amino acids have \acid\ in their name, some are acidic in water solutions, some are basic, and others are neutral. propose an explanation for this observation based on the structures and descriptions of the amino acids below. (hint: review the acidic functional groups and the basic functional groups from model 2)

Explanation:

Amino acids have both acidic (\(-COOH\)) and basic (\(-NH_2\)) functional groups. In neutral amino acids, the number of acidic and basic groups is balanced. Acidic amino acids have an extra acidic (\(-COOH\)) group, while basic amino acids have an extra basic (\(-NH_2\)) group. The overall acidity or basicity of an amino acid in water depends on the relative number of these functional groups.

Answer:

Amino acids contain both acidic (\(-COOH\)) and basic (\(-NH_2\)) groups. Neutral amino acids have a balance of these groups. Acidic amino acids have an extra \(-COOH\) group, and basic amino acids have an extra \(-NH_2\) group. The relative number of these groups determines the amino acid's behavior in water (acidic, basic, or neutral).