Answers and Solutions

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There are Simple carbohydrates and Complex Carbohydrates ,

Simple carbs will be less in fiber and high in fats and sugar like white bread or white rice, whereas Complex carbs will be high in fiber like Wheat, oats etc and less in sugar.

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There are three main groups of carbohydrates: monosaccharide, disaccharides, and polysaccharides.

Monosaccharide or single sugar There are many single sugars or monosaccharide. The most common single sugar are the sugars with six carbon atoms – glucose, fructose, and galactose. Glucose is found in all animals, at least in small quantities. Fructose is found in plants, but rare in animals. Galactose is found in milk sugar from mammals.

Disaccharides or double sugars Double sugars are so called because each molecule of a double sugar is made up of two molecules of single sugars bonded together. Double sugars are also called disaccharides. Common disaccharides are maltose, sucrose, and lactose. Polysaccharides or complex carbohydratesPolysaccharides consist of many monosaccharide molecules joined together. Starch, glycogen, and cellulose are complex carbohydrates. 

Answer

Carbohydrates are classifed into two categories based on their functional group-

1. aldoses- These contain aldehyde group. Ex.- glucose, galactose, arabinose ec.

2. Ketoses - These contain Ketone group. Ex.- Fructose, Erythruluse etc.

Based on their number , they are classified as-

1. monosacharides- These contain only single unit of carbohydrate molecules. Ex. Glucose, Fructose ec...

2. oligosaharides - These contain 2-10 units of carbohydrate molecules attached with each other by O- glycosidic linkage. Ex.- sucrose, etc.

3.Polysacharides - These contain more than 10 molecules of carbohydrates units attached with each other by O- glycosidic linkage. Ex. Cellulose, Starch.