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).
Ribose and deoxyribose are both sugars. They have identical chemical structure except that ribose has a hydroxyl group (OH) on carbon 2, while deoxyribose is without an oxygen on carbon 2 (H).Ribose is the sugar component of the structure of RNA (ribonucleic acid) and deoxyribose is the sugar component in DNA (deoxyribonucleic acid).ibose is the sugar component of the structure of RNA (ribonucleic acid) and deoxyribose is the sugar component in DNA (deoxyribonucleic acid).