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Glucose and fructose is examples of
A. Monosaccharide
B. Disaccharide
C. Polysaccharide
D. None of these

Last updated date: 13th Jun 2024
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Hint: Glucose and fructose are made up of one sugar unit. Glucose and fructose combine to produce the disaccharide sucrose in a condensation reaction.

Complete Answer:
- Sugars are an essential structural component of living cells and a source of energy in many organisms. Sugars are classified based on the number of monomeric units present. The term simple sugars denote monosaccharides. The term table sugar or granulated sugar actually refers to sucrose, which is a disaccharide made of two monosaccharides: glucose and fructose.
Now, let us find the solution from the option.
- One sugar unit is referred to as monosaccharides, made up of single sugar molecules. Examples of these are galactose, glucose and fructose. When two monosaccharides are linked by a chemical bond they are formed disaccharides, the most usual one is sucrose.
- A disaccharide also known as double sugar unit is the sugar produced when two monosaccharides or two simple sugar units are linked by glycosidic linkage.
- A polysaccharide is a large molecule made of many smaller monosaccharides.

Thus, the correct option is A. i.e. Monosaccharide.

Note: Carbohydrates, especially polysaccharides, are one of the four major groups of biomolecules. The others are proteins, amino acids, and nucleic acids. A carbohydrate refers to any of the group of organic compounds consisting of carbon, hydrogen, and oxygen. Carbohydrates are the most abundant among the major classes of biomolecules. They are important nutrients, providing energy that shall fuel various metabolic processes.