Practice problem
Monomers and Polymers — Role & Importance

Image source: By CNX OpenStax (based on copyright claims). CC BY 4.0 via Wikimedia Commons
The reaction shown above is called hydrolysis. In this hydrolysis reaction, water is added to maltose, a sugar. As a result, the maltose separates into its constituent parts: 2 glucose molecules.
Which of the choices below is the monomer in this scenario?