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Milk contains a sugar called
A. Galactose
B. Lactose
C. Maltose
D. Sucrose

Answer
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Hint: Sugar is a class of carbohydrates that tastes sweet.
> Sugar provides energy to the body.
> Common examples are sucrose (table sugar) which is made up of glucose + fructose,
> Lactose is made up of glucose + galactose and maltose is made up of two molecules of glucose.
> In the body, compound sugars are converted into simple sugars.

Complete answer:
In order to solve this question we need to learn more about sugar and types of sugar.
Sugar is also known as sweet taster which also contains soluble carbohydrates.
Simple sugars, also called monosaccharide, include glucose, fructose, and galactose.
Compound sugars, also called disaccharides or double sugars, are molecules composed of two monosaccharide joined by a glycosidic bond.
Common examples are sucrose (table sugar) which is made up of glucose + fructose

Lactose is made up of glucose + galactose and maltose is made up of two molecules of glucose.

In the body, compound sugars are hydrolyzed into simple sugars.
Galactose: It is found in dairy products, avocados, sugar beets, other gums and mucilages.
It is also synthesized by the body, where it forms part of glycolipids and glycoproteins in several tissues.
Lactose: Lactose is the principal sugar or carbohydrate naturally found in milk and dairy.
It is a disaccharide sugar which is made up of glucose and galactose.
It is broken down into parts by an enzyme called lactase. After the breakdown these sugars get absorbed in bloodstreams.
Maltose: It is found in starchy grains, vegetables and fruits.
It is useful as a low-cost sugar source.
Sucrose: It is the primary component of most sugars which we use in baking.
These sugars are obtained from sugar cane.
Sucrose consumption should be limited.

So, the correct option is option B) Lactose.

Note: Natural sugars: Natural sugars are found in fruit as fructose and in dairy products, such as milk and cheese, as lactose. Foods with natural sugar are important because they provide essential nutrients that keep the body healthy.
Refined sugars: Refined sugar comes from sugar cane or sugar beets, which are processed to extract the sugar.
It is typically found as sucrose, which is the combination of glucose and fructose.