In this article we will discuss about the relations among nucleic acids, nucleotides and nucleosides. Nucleic Acids: These are defined as polynucleotides composed of repeating units ribonucleotides (in RNA) or deoxyribonucleotides (in DNA). The difference between the two structure is that in deoxyribonudeotides there is no-OH group in position 2'. The presence of three esterifiable-OH groups in the ribose portion [...]
Let us make an in-depth study of the biosynthesis of purine nucleotides, pyrimidine nucleotides and deoxyribonucleotides. Biosynthesis of Purine Nucleotides: There are two pathways by which nucleotides are made available for the formation of nucleic acids: (1) Denovo synthesis i.e. new synthesis and (2) Salvage process i.e. recycling of the bases. De Novo Synthesis: De novo (all over again) synthesis [...]
Let us make an in-depth study of the nucleic acid metabolism. After reading this article you will learn about 1. Digestion and Absorption of Nucleic Acid and 2. Catabolism of Nucleosides. Digestion and Absorption of Nucleic Acid: Nucleic acids are consumed in large quantities owing to their presence in all cells. These nucleic acids are not utilized by the body; [...]