STRUCTURE OF A NUCLEOTIDE

The nucleotide is made up of three components; the 5 carbon pentose sugar, the nitrogen base and the phosphate group. The pentose are of two type depending on the group of atoms attached to carbon atom two. If hydrogen is attached to carbon atwom two then that is a deoxyribose sugar and if a hydroxyl is attached to carbon atom two then that is a ribose sugar.
the nitrogen bases also of two types; one with a single ring knwon as pyrimidine (containing thymine, uracil and cytosine) and one with a double ring containing adenine and guanine. then a phosphate group made up of phosphoric acid.
first the nitrogen base combines with a a pentose sugar at carbon atom one of a pentose sugar in a reaction which results into loss of water forming a nucleoside called either a ribonucleoside or a deoxyribonucleoside.
the phosphate group is then added to this nucleoside at carbon atom five resulting into another loss of water molecule forming a nucleotide.

[KigongoJoyce]

How is the ileum adapted to it's functions

[kirandadwal]

How many water molecules will get lost the formation of nucleotides??