Question

Which of the following molecules is not having glycosidic linkage?

• A. Sucrose
• B. Glucose
• C. Maltose
• D. Cellulose

Hint:

In biochemistry, understanding the structure and bonding of carbohydrates is crucial for applications in food science, nutrition, and bioengineering.

Answer 1

The Correct Option is B

Step 1: Define glycosidic linkage. A glycosidic linkage is a type of covalent bond that joins a carbohydrate molecule to another group, which can be another carbohydrate. It is formed by a dehydration reaction between two monosaccharides. 
Step 2: Analyze each molecule. Sucrose (table sugar) is a disaccharide consisting of glucose and fructose linked via a glycosidic bond.
Glucose is a simple sugar or monosaccharide, lacking glycosidic linkages as it does not bond with another sugar in its basic form.
Maltose is a disaccharide composed of two glucose units linked by a glycosidic bond.
Cellulose is a polysaccharide made up of multiple glucose units linked by glycosidic bonds, forming the structural component of plant cell walls. Conclusion: Glucose, being a monosaccharide, does not have glycosidic linkages, making it the correct answer.