Question

proteoglycans are composed of ____________. multiple choice carbohydrates and proteins carbohydrates and fats nucleic acids and fats proteins and fats nucleic acids and proteins

Explanation:

Proteoglycans are macromolecules in which carbohydrate chains (glycosaminoglycans) are covalently attached to a core - protein. So they are composed of carbohydrates and proteins.

Answer:

carbohydrates and proteins