The components of a nucleoside are:A pentose sugar(generally ribose or deoxyribose), anda nitrogenous base which may be Adenine/Guanine/Thymine/Cytosine/Uracil.It becomes a nucleotide on addition of...
nucleotides are made up of the pentose sugar , phosphate group and the base pairs where as nucleotides contain only the pentose sugar and phosphate group