Respuesta :
Answer:
The correct option is A.
Explanation:
A disaccharide refers to a sugar that is formed by the chemical bonding of two monosaccharides which are joined together via glycosidic bond.
A monosaccharide refers to any sugar that can not be reduced further to give a simpler sugar. When two monosaccharides residue come together they form a disaccharide ('Di' means two).
One good example of monosaccharide is glucose. When two glucose molecules or glucose and another monosaccharide join together they give rise to disaccharide such as surcose, lactose and maltose. The components of these disaccharides are given below:
1. Sucrose (Table sugar): Glucose + fructose.
2. Lactose (Milk sugar): Glucose + galactose.
3. Maltose: Glucose + glucose.
A disaccharide is a sugar that can be reducing or non-reducing and are made up of two molecules of monosaccharide sugar by chemical bonding.
What are disaccharide sugars?
The class of sugars that comprise two molecules of simple one sugar are called a disaccharide. The monosaccharide or single sugar molecule joins together to form a disaccharide.
The monosaccharide sugars bond together by a glycosidic bond or linkage. Some of the common disaccharides are maltose, lactose and sucrose.
Therefore, option A) disaccharides are linked by the chemical bonds of two monosaccharides is correct.
Learn more about disaccharides here:
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