Chapter 24.2, Problem 11LC

Interpretation Introduction

Interpretation: The important structural features of sucrose, glucose and fructose are to be distinguished.

Concept introduction: Carbohydrates are sugar molecules. Carbohydrates are carbon, hydrogen, and oxygen-based monomers of ketones and aldehydes, including many hydroxyl groups.

Answer to Problem 11LC

Sucrose has two rings, one with six carbon atoms and one with five carbon atoms. Glucose's ring structure consists of six members. Fructose is a five-membered ring.

Explanation of Solution

Sucrose is comprised of two rings, one with six and the other with five carbon members. Sucrose is called a disaccharide because it is a sugar molecule made up of both glucose and fructose.

Glucose is an individual sugar unit called monosaccharides. Glucose has a ring structure that is composed of six members. Glucose has an aldehyde group.

Fructose is a type of monosaccharide. The structure of fructose is a five-membered ring. Ketone is the functional group of fructose.

Conclusion

Sucrose has two rings, one with six carbon atoms and one with five carbon atoms. Glucose's ring structure consists of six members. Fructose is a five-membered ring.