Question

Which of the following is not a monosaccharide?

• A. Fructose
• B. Glucose
• C. Galactose
• D. Sucrose

Answer 1

The correct option is D

Sucrose

The correct option is D.

The explanation for the correct option:

1. Monosaccharides are the simplest forms of sugar or simple sugars.
2. They are the most fundamental unit of which all the carbohydrates are built.
3. Sucrose is not a monosaccharide, it is a disaccharide.
4. Sucrose is formed of the monosaccharides fructose and glucose.

The explanation for the incorrect options:

Option A:

1. Fructose is a kind of sugar known as a monosaccharide.
2. It is also called fruit sugar, as it is mainly found naturally in several fruits.

Option B:

1. Glucose is the simplest sugar or a monosaccharide and the preferred source of energy for the body.
2. It is the main sugar found in the blood, it is the main source of energy, which one gets from the food.

Option C:

1. Galactose is monosaccharide sugar, which is about 65 percent as sweet as sucrose and as sweet as glucose.
2. The molecule of galactose when associated with glucose forms a lactose molecule.

Final answer: Sucrose is not a monosaccharide.