BIOMOLECULES AND ENZYMES

Detailed explanation-1: -A nitrogenous base and a sugar molecule link by a N-glycosidic bond.

Detailed explanation-2: -A nucleoside consists of a pentose sugar to which a nitrogen base is attached by a glycosidic bond. The sugar may be ribose or deoxyribose. The nitrogenous bases are purines or pyrimidines. Nitrogen base is attached to the C-1 of the pentose sugar.

Detailed explanation-3: -DNA are polymers made of long chains of nucleotide. A nucleotide is the basic structural unit and building block for DNA. A nucleotide has 3 components-a nitrogenous base, pentose sugar and a phosphate group.

Detailed explanation-4: -Nucleosides consist of a purine or a pyrimidine base and a ribose or a deoxyribose sugar connected via a -glycosidic linkage. These compounds are associated with structures of RNA (ribose sugars) and DNA (deoxyribose sugars).