Nucleotide - Wikipedia
Nucleotides are organic molecules composed of a nitrogenous base, a pentose sugar and a phosphate. They serve as monomeric units of the nucleic acid polymers – deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), both of which are essential biomolecules within all life-forms on Earth.

Nucleotide | Description, Types, Function, & Facts | Britannica
A nucleotide is any member of a class of organic compounds in which the molecular structure comprises a nitrogen-containing unit (base) linked to a sugar and a phosphate group.

Nucleotide Definition, Structure, and Function
What Is a Nucleotide? A nucleotide is an organic molecule that serves as the building block for nucleic acids like DNA (deoxyribonucleic acid) and RNA (ribonucleic acid). These molecules consist of three primary components: a nitrogenous base, a sugar molecule, and one or more phosphate groups.

Nucleotide - National Human Genome Research Institute
A nucleotide is the basic building block of nucleic acids (RNA and DNA). A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen-containing base.

Nucleotides and Nucleosides - Definition, Structure, Function, Types ...
A nucleotide is a type of organic molecule made up of a nitrogenous base, a pentose sugar, and a phosphate. Polynucleotides, like DNA and RNA, are made up of a long chain of nucleotides with different nitrogenous bases. Nucleotides are needed for all metabolic and physiological processes to work.

10.2: Nucleotides - Chemistry LibreTexts
This page explains nucleotides as the building blocks of nucleic acids, composed of phosphoric acid, a pentose sugar, and a nitrogenous base. It distinguishes between ribonucleotides (with ribose) …

Nucleotide - an overview | ScienceDirect Topics
Nucleotides in cells are the building blocks of RNA and DNA. Free nucleotides are involved in all major aspects of metabolism, and the importance of this is reflected in the careful regulation of their intracellular levels.

Nucleotide Architecture: Chemical Energetics, Metabolic Flux, and the ...
Every nucleotide contains three core elements: a nitrogenous base, a pentose sugar, and one or more phosphate groups. That sounds elementary, but the division of labor among those elements explains why nucleotides can do so many jobs without changing molecular family. The base controls pairing logic and recognition surfaces.

Nucleotide - Definition, Structure (3 Parts), Examples & Function
A nucleotide is an organic molecule that is the building block of DNA and RNA. They also have functions related to cell signaling, metabolism, and enzyme reactions. A nucleotide is made up of three parts: a phosphate group, a 5-carbon sugar, and a nitrogenous base.

NUCLEOTIDES Definition & Meaning - Merriam-Webster
The meaning of NUCLEOTIDE is any of several compounds that consist of a ribose or deoxyribose sugar joined to a purine or pyrimidine base and to a phosphate group and that are the basic structural units of nucleic acids (such as RNA and DNA).