Biological Molecule -Carbohydrate-

-Carbohydrate
Carbohydrate is divided by three main group, "Monosaccharide", "Dissacharide", "Polysaccharide". The word 'Saccharide' refers to a sugar or a sweet substance.

 o Monosaccharide
Monosaccharide are sugar, sugar that dissolve easily in water to form sweet-taste solution, monosaccharide have general formula  of CH2O and consist of a single sugar molecule. Main type of monosaccharide are according to number of carbon atom; Trioses, Pentose, Hexoses. The name end with -oses are all sugar.

 o Ring stucture
The form of glucose where it is below the ring is known as Alpha-glucose and the form where it is above the ring Beta-glucose. The same molecule can switch between the two forms, two forms of the same molecule are Isomers

 o Role of monosaccharide in living organisms
monosaccharude have two function;firstly, they are commonly used as a sources of energy respiration. this is due to the large number of carbo-hydrogen bond, secondly monosaccharide is very important to build large molecule as the builing block

 o Disaccharide and glycosidic bond
Disaccharide are like monosaccharide they are both sugar, They are formed by two monosaccharide joing together. Theree most common disaccharide are maltose(glucose + glucose), Sucrose (glucose+fructose) and Lactose(glucose+galactose). Sucrose is transport of sugar in plant and the sugar commonly bought in the shop, Lactose is the sugar that is found in milk. The joining of the two monosaccharide take place by a process known as condensation . By allowing the oxygen to form a bridge between the two molecule, holding them together and forming disaccharide.

Biological Molecule -Monomers, Polymers and Macro-molecule-

- Monomers, Polymers and Macro-molecule
The term "Marco-molecule" means a giant molecule, there are several types of macro molecule in living organism such as "Polysaccharide", and "Nucleic Acid(Polynucleotide)". Poly means many, Mono means one and the molecule are polymer meaning they are made of many repeating sub unit that are identical, The sub-unit are called "Monomer", they are joint together like beans on a string.