Vitamin E and Alzheimer's Risk. A second study in the July issue of the Archives of Neurology shows that eating foods rich in vitamin E may help lower risks of developing dementia and Alzheimer's disease.
Ribose and Deoxyribose. The 5-carbon sugars ribose and deoxyribose are important components of nucleotides, and are found in RNA and DNA, respectively. The sugars found in nucleic acids are pentose sugars; a pentose sugar has five carbon atoms. A combination of a base and a sugar is called a nucleoside. Ribose, found in RNA, is a normal sugar, with one oxygen atom attached to each carbon atom. Deoxyribose, found in DNA, is a modified sugar, lacking one oxygen atom (hence the name deoxy).
DNA nucleotides consist of three parts: 1. A five-carbon sugar (hence a pentose) called deoxyribose. Deoxyribose, which has a hydrogen atom attached to its #2 carbon atom (d â¦ esignated 2') Deoxyribose-containing nucleotides, the deoxyribonucleotides, are the monomers of DNA. 2.n DNA the sugar present is deoxyribose, whereas ribose is present in RNA (the second fundamental difference). This sugar is bonded to a phosphate group, which is made up of four oxygen atoms that are bound to one phosphorous atom.