Pathology Enzymes which are responsible for the synthesis of extracellular glucans and fructans: A Glucosyltransferase, fructosyl transferase. B Glucosylconvertase, fructosyl C Convertase. D Both of the above. 💡 Explanation Enzymes which are responsible for the synthesis of extracellular glucans and fructans: ✓ Correct Answer: A. Glucosyltransferase, fructosyl transferase.