What is the difference between a nucleoside and a nulceotide ?

Answer

A ubcleoside is formed when l-position of a pyrimidine (cytosine theymine or uracil) or 9-position of a puring (guanine or adenine) base is attached to `C-I` of surgar (ribose or deoxyribose) by a linkage Thus in general nucleosidedeos may be represented as Sugar -Base For example structure (1) respresents a nucleoside
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A nucleotide contains all the three basic componets of nuclecis acids i.e a phosphoric acid group a pentose sugar and a nitrogenous base These are obtained by esterifaction if `C5 -OH` group of the pentose sugar by phosphoric acis Thus in general, a nucleotide is represented as
`Sugar-Base-underset(O)underset(||)overset(O)overset(||)P-OH`
For example structure (II) resopresents a nucleotide .

Explanation

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