Glycoproteins are formed as a result of the combination of:

Explanation

The prefix glyco means sugar, so a glycoprotein is protein joined to a carbohydrate group, and such molecules coat the cell surface where they act in recognition and as receptors. Lipid with protein gives a lipoprotein and nucleic acid with protein a nucleoprotein, both of which are conjugated molecules of other kinds. Reading the prefix identifies the non protein partner every time.