Q:
Amino acids can be distinguished from one another by
Answer & Explanation
Answer: C) the chemical properties of their R groups
Explanation: Amino acids are organic compounds containing amine (-NH2) and carboxyl (-COOH) functional groups, along with a side chain (R group) specific to each amino acid.
Depending on the nature of the side chain groups, three classes of aminoacids can e distinguished:
1. Amino acids with H ond donor and acceptor groups.
Histidine, lysine, aspartic acid, threonine,...
2. Amino acids with donor grups only.
Arginine, tryptophan and cysteine.
3. Amino acids with acceptor groups only.
Asparagine and glutamine.
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