Question

Trehalose is a combination of:

• A. Two glucose molecules
• B. Two maltose molecules
• C. Two lactose molecules
• D. Two sucrose molecules

Hint:

Trehalose is unique for its ability to protect cells from damage due to dehydration and freezing. It is distinct from other disaccharides in its structure and biological functions.

Answer 1

The Correct Option is A

Trehalose is a disaccharide composed of two glucose molecules linked by an \(\alpha\)-1,1-glycosidic bond. It is naturally found in some plants, fungi, and invertebrates, and serves as a source of energy and protection against environmental stress.
- Maltose is also a disaccharide, but it consists of two glucose molecules linked by an \(\alpha\)-1,4-glycosidic bond, not the same linkage as in trehalose.
- Lactose is a disaccharide composed of glucose and galactose, not two glucose molecules.
- Sucrose is a disaccharide made up of glucose and fructose, not two glucose molecules.
Thus, the correct answer is option (1): Trehalose is a combination of two glucose molecules.