In carbohydrates oxygen to hydrogen ratio is 1: 2.
Based on the structure the carbohydrates can be divided into 3 catogaries,
1. Monosaccharides
2. Disaccharides
3. Polysaccharides
Polysaccharides can be divided into 2 groups
1.structural polysaccharides
2.storage polysaccharides
1.MONOSACCHARIDES
Monosaccharides are composed of simple sugar units.
Hexoses are the common rule of monosaccharides.Glucose is the most common hexose.
Ex;glucose present in fruits
lactose present in milk
2.DISACCHARIDES
Disaccharides formed by combining 2 monosaccharides by glicosilic bond.
Usually hexoses are going to form disaccharides.
There are 3 types of disaccharides
1.Moltose
2.Lactose
3.Sucrose
3.POLYSACCHARIDES
Large number of monosaccharides linked to form polysaccharides.
Forming a polysaccharide polymersization of monosaccharide have to be occur.
Polysaccharides are large complex molecule which have a high molecular weight.