Question

match each structure to the appropriate macromolecule.

Explanation:

The first structure has peptide - bonds and R - groups, characteristic of proteins. The second structure with repeating sugar units is a polysaccharide (a type of carbohydrate). The third structure with a nitrogenous base and phosphate - sugar backbone is part of a nucleic acid.

Answer:

1. Protein
2. Carbohydrate
3. Nucleic acid