Nucleic acids can also be found in all living cells from archaea to eukaryotes, and in viruses.
Historical background The particularly significant past events in biochemistry have been concerned with placing biological phenomena on firm chemical foundations. If you can answer this question 'yes' or if you are hastily searching at least some information on the Internet such as " what is a term paper ," " write my coursework for me ," etc.
Although much has been learned about how biological systems work, they are extremely complex and there is still much more to learn. Time and again, these mechanisms have been shown to be broadly applicable. In a substance was isolated from the nuclei of pus cells and was called nucleic acidwhich later proved to be deoxyribonucleic acid DNAbut it was not until that the significance of DNA as genetic material was revealed, when bacterial DNA was shown to change the genetic matter of other bacterial cells.
Subsequent work has substantiated the concept that many vitamins are essential in the chemical reactions of the cell by virtue of their role in enzymes.
Biochemistry is a branch of biology that deals with the research study of all living systems at the molecular level. For example, the aldohexose glucose may form a hemiacetal linkage between the hydroxyl on carbon 1 and the oxygen on carbon 4, yielding a molecule with a 5-membered ring, called glucofuranose.