Question

sort the amino acid structures into the correct column by dragging and dropping. some of the amino acids listed may not act as either an acid or base, so all options listed may not be used. amino acids with acidic r groups (proton donors) amino acids with basic r groups (proton acceptors)

Explanation:

Step1: Identify acidic R - groups

Amino acids with acidic R - groups have functional groups in the R - group that can donate a proton. Common acidic functional groups in R - groups are carboxyl groups (-COOH).

Step2: Identify basic R - groups

Amino acids with basic R - groups have functional groups in the R - group that can accept a proton. Common basic functional groups in R - groups are amino groups (-NH₂).

Answer:

Without specific names of the amino - acids from the structures provided (since they are just in structural formula form), we can't give exact names. But in general, amino acids like aspartic acid and glutamic acid have acidic R - groups (they have an extra -COOH group in the R - group). Amino acids like lysine, arginine, and histidine have basic R - groups (lysine has an extra -NH₂ group, arginine has a guanidino group, and histidine has an imidazole group in the R - group). You would need to match the structures based on the presence of these characteristic functional groups in the R - groups.