Structure And Function Of Nucleic Acids As Cell Constituents Pdf

structure and function of nucleic acids as cell constituents pdf

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Nucleic acid

Nucleic acid , naturally occurring chemical compound that is capable of being broken down to yield phosphoric acid , sugars, and a mixture of organic bases purines and pyrimidines. Nucleic acids are the main information-carrying molecules of the cell , and, by directing the process of protein synthesis , they determine the inherited characteristics of every living thing. DNA is the master blueprint for life and constitutes the genetic material in all free-living organisms and most viruses. RNA is the genetic material of certain viruses, but it is also found in all living cells, where it plays an important role in certain processes such as the making of proteins. Nucleic acids are naturally occurring chemical compounds that serve as the primary information-carrying molecules in cells.

2.6: Structure and Function - Nucleic Acids

Nucleic acids are the biopolymers , or large biomolecules , essential to all known forms of life. They are composed of nucleotides , which are the monomers made of three components: a 5-carbon sugar , a phosphate group and a nitrogenous base. If the sugar is a compound ribose , the polymer is RNA ribonucleic acid ; if the sugar is derived from ribose as deoxyribose , the polymer is DNA deoxyribonucleic acid. Nucleic acids are naturally occurring chemical compounds that serve as the primary information-carrying molecules in cells. They play an especially important role in directing protein synthesis.

An Overview of Nucleic Acid Chemistry, Structure, and Function

Nucleic acids are molecules that allow organisms to transfer genetic information from one generation to the next. These macromolecules store the genetic information that determines traits and makes protein synthesis possible. Two examples of nucleic acids include deoxyribonucleic acid better known as DNA and ribonucleic acid better known as RNA. These molecules are composed of long strands of nucleotides held together by covalent bonds.

Learn About Nucleic Acids and Their Function

DNA and RNA are nucleic acids that carry out cellular processes, especially the regulation and expression of genes. DNA is the genetic material found in all living organisms, ranging from single-celled bacteria to multicellular mammals. It is found in the nucleus of eukaryotes and in the chloroplasts and mitochondria.

Nucleic acids, deoxyribonucleic acid DNA and ribonucleic acid RNA , carry genetic information which is read in cells to make the RNA and proteins by which living things function. The well-known structure of the DNA double helix allows this information to be copied and passed on to the next generation. In this article we summarise the structure and function of nucleic acids.

Steve Minchin, Julia Lodge; Understanding biochemistry: structure and function of nucleic acids. Essays Biochem 16 October ; 63 4 : — Nucleic acids, deoxyribonucleic acid DNA and ribonucleic acid RNA , carry genetic information which is read in cells to make the RNA and proteins by which living things function. The well-known structure of the DNA double helix allows this information to be copied and passed on to the next generation. In this article we summarise the structure and function of nucleic acids.


A study of the structure and function of nucleic acids is needed to be able to understand state that the genotype describes the genetic composition of an organism in terms state that DNA, which is found in the nucleus of a cell, contains and.


Students should be able to explain and apply core concepts of macromolecular structure and function, including the nature of biological macromolecules, their interaction with water, the relationship between structure and function, and frequently encountered mechanisms for regulating their function. The learning goals below are categorized as introductory A , intermediate B and upper C. Macromolecules are made up of basic molecular units. They include the proteins polymers of amino acids , nucleic acids polymers of nucleotides , carbohydrates polymers of sugars and lipids with a variety of modular constituents. These processes may involve multi-protein complexes e.

Understanding biochemistry: structure and function of nucleic acids

In this section, we will examine the structures of DNA and RNA, and how these structures are related to the functions these molecules perform. We will begin with DNA, which is the hereditary information in every cell, that is copied and passed on from generation to generation.

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