Which is a carbohydrate monomer? glucose sucrose glucagon glycogen

A monomer is a molecule that bonds with other identical molecules to form polymers. In this case, the correct answer is glucose, but galactose and fructose also belong in the monomer group, just aren't mentioned in the question. Sucrose is a somewhat archaic term for sugars in general, any simple sugar like the one we eat on a regular basis.

The answer should be a