Question

Milk contains a sugar called

• A. Galactose
• B. Lactose
• C. Maltose
• D. Sucrose

Answer 1

The correct option is B Lactose

A. Galactose is a monosaccharide sugar as sweet as glucose. It is found in butter, butter milk, buttermilk, cheese, cream and gums.

B. Lactose is a disaccharide sugar composed of galactose and glucose. Lac in Latin means milk. It comprises about 2-8 % of milk by weight so, it is important constituent of milk. It is also called as milk sugar. Other sources are buttermilk, cheese and cream.

C. Maltose is a disaccharide sugar composed of two units of glucose. It is found in germinating seeds, also called as malt sugar. It is found in cereals, pizza, and bread products.

D. Sucrose is a disaccharide sugar composed of glucose and fructose. It is also called as table sugar. It is found in sugarcane.

So, the correct answer is 'Lactose'.