Which part of an amino acids basic structure gives it its unique functional characteristics

B

Explanation:

This R group, or side chain, gives each amino acid proteins specific characteristics, including size, polarity, and pH. Amino acid structureAmino acids have a central asymmetric carbon to which an amino group, a carboxyl group, a hydrogen atom, and a side chain (R group) are attached.

Chemicals of this type: Alanine

Explanation:

protistas excret ethanol used in the manufacture of vinegar