Learn the key differences between nucleotide and nucleoside, two building blocks of nucleic acid. Nucleotide has a phosphate group, sugar and a base, while nucleoside has only sugar and a base. Explore nucleosides and nucleotides, their structures, roles in DNA/RNA, and importance in energy transfer, signaling, and cellular processes. Nucleoside is defined as a molecular structure consisting of a base moiety and a sugar moiety, playing key roles in neurotransmission, cardiovascular regulation, and as signaling molecules, as well as serving as intermediates in essential cellular biosynthetic pathways. They are classified into subtypes such as N-nucleosides and C-nucleosides based on the type of bond formed between the sugar and base moieties. AI generated definition based on: Tetrahedron, 2010 A nucleoside is a structural subunit of nucleic acids, the heredity-controlling components of all living cells, that consists of a sugar molecule linked to a nitrogen-containing organic ring compound.
