Question

Which of following statement is correct?

(a) Glucose has furanose structure and fructose has pyranose structure

(b) Glucose has pyranose structure and fructose has furanose structure

(c) Both have furanose structure

(d) Both have pyranose structure

Answer 1

Answer is : (b)

Glucose has pyranose structure and fructose has furanose structure

Cyclic sugars that contain a 5-membered ring are called furanose. e.g. Fructose.

Cyclic sugars that contain a 6-membered ring are called pyranose. e.g. Glucose.