Question

a catalyst is a molecule made of proteins. proteins glycoproteins glycolipids carbohydrates

Explanation:

Most enzymes, which are biological catalysts, are proteins. While there are ribozymes (RNA - based catalysts) and other types, proteins are a common component of catalysts in biological systems. Glycoproteins are proteins with attached carbohydrate chains, glycolipids are lipid - carbohydrate conjugates, and carbohydrates are a different class of biomolecules not typically the main component of catalysts.

Answer:

proteins