Question

subunit of a macromolecule
what is the function of a macromolecule that is comprised of several of these subunits?
○ regulating metabolism
○ storing genetic information
○ providing structural support
○ catalyzing chemical reactions

Explanation:

The subunit shown is a nucleotide (with a phosphate group, pentose sugar, and nitrogenous base). Macromolecules made of nucleotides are nucleic acids (DNA/RNA), whose function is storing genetic information. Regulating metabolism is for proteins/enzymes/hormones, internal support for structural molecules (like cellulose), and catalyzing reactions for enzymes (proteins). So the correct function is storing genetic information.

Answer:

storing genetic information