Question

the model shows the chemical structure of a molecule. this molecule is a building block of which type of biomolecule? carbohydrate protein lipid nucleic acid

Explanation:

The molecule shown is an amino - acid. Amino - acids are the building blocks of proteins. Carbohydrates are made of monosaccharides, lipids have fatty acids and glycerol as building blocks, and nucleic acids are made of nucleotides.

Answer:

protein