Question

which of the following groups of macromolecules are composed of three fatty acid chains bonded to a glycerol?
lipids
proteins
nucleic acids
carbohydrates

Explanation:

Lipids called triglycerides are composed of three fatty - acid chains bonded to a glycerol. Proteins are made of amino acids, nucleic acids are made of nucleotides, and carbohydrates are made of monosaccharides.

Answer:

lipids