AP BIOLOGY

Detailed explanation-1: -Amino acids differ from each other with respect to their side chains, which are referred to as R groups. The R group for each of the amino acids will differ in structure, electrical charge, and polarity.

Detailed explanation-2: -Structure of an Amino Acid Every amino acid also has another atom or group of atoms bonded to the central atom known as the R group. This R group, or side chain, gives each amino acid proteins specific characteristics, including size, polarity, and pH.

Detailed explanation-3: -The R-group dictates the properties (size and structure) and nature of the amino acid (polarity). It determines if the amino acid is considered acidic, polar, nonpolar, basic, or neutral. The R-group can also help to predict the behaviour and the reactivity of the amino acid in a reaction.

Detailed explanation-4: -Classification: There are basically three major classifications for amino acids (1) those with nonpolar R group, (2) those with uncharged polar R groups, and (3) those with charged polar R group.

Detailed explanation-5: -Each molecule has a central carbon atom linked together with a basic amino group, a carboxylic acid group, a hydrogen atom and an R-group, or side-chain group. The R-group is what sets the amino acids apart. The R-group determines each amino acid’s chemical nature.