6.A. Briefly describe the primary differences between proteoglycans and glycoproteins.
B. Give two examples of roles played by glycosyltransferases. Sugar nucleotides are typically the substrates rather than the sugar alone. Why?
C. Draw the structure of an N-linked galactose (i.e. as part of a glycoprotein with a β-glycosidic linkage). Include the structure of the amino acid side chain and the sugar.