Question

which molecule is the building block of a carbohydrate? fatty acid nucleotide phosphate group glycerol amino acid monosaccharide

Explanation:

Carbohydrates are composed of monosaccharides. Fatty acids and glycerol are parts of lipids, nucleotides are building - blocks of nucleic acids, amino acids are for proteins, and phosphate groups are involved in many biological molecules but not the building - blocks of carbohydrates.

Answer:

monosaccharide