Question

Which of the following sugar is composed of glucose and fructose units? 

(a) Glucose

(b) Lactose

(c) Sucrose

(d) Maltose    

Answer 1

Hint:  The essential substance needed for our body is the carbohydrates. It has a monosaccharide and disaccharide form. The same chemical formula applies to glucose and fructose (important carbohydrates and known as simple sugar).

Complete answer

Monosaccharides are glucose and fructose. The basic units of carbohydrates are Monosaccharides, which consist of only one sugar unit.

Crystal {Glucose} {H}{12}{O} {6}$ is the chemical glucose formulation. It is the largest and most abundant blood sugar, which circulates in the blood and uses the enzymes glucokinase or hexokinase to stimulate the metabolism. It is called blood sugar.

Fructose — ${C} {6}{H} {O} {6}$ is the chemical formulation in fructose. Fructose has a very different metabolic pathway compared to other sugars. Only in the liver is it metabolised. Fructose is also directly absorbed into the blood during digestion along with glucose.

Disaccharides (made up of two units of monosaccharides). Glycosidic connection connects two monosaccharides. Simple water soluble sugars are disaccharides.

Sucrose is the disaccharide formed by the dehydration of 1 monomer of glucose and 1 fructose monomer. The product we get is sucrose when we lose a water molecule. The saccharose chemical is ${C} {12}{H}}}{O} {11}$. Sugar cane, fruits, and vegetables can easily be supplied with sucrose.

Hence C is the correct answer. 

Note:

Lactose is a disaccharide and Is formed from galactose and glucose.

Maltose is a disaccharide and is formed from 2 units of glucose.