Question

Which of the following is not a monosaccharide?

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

Answer 1

The correct option is A Sucrose

Monosaccharides are the monomers of carbohydrates. If the carbohydrate consists of two monosaccharides, it is known as disaccharide.
Following table depicts the disaccharides formed by various monosaccharides:

$\begin{array}{cc}\text{Monosaccharides}& \text{Disaccharides}\\ \text{Glucose}& \text{Maltose - Glucose+Glucose}\\ \text{Galactose}& \text{Lactose - Glucose+Galactose}\\ \text{Fructose}& \text{Sucrose - Glucose+Fructose}\end{array}$