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).
Posted on. (Answer #1). DNA, or Deoxyribonucleic Acid, is a double helix, with a backbone that is made up of alternating molecules of deoxyribose, a five-carbon sugar with the chemical formula C5H10O4 and molecules of phosphate, an inorganic salt with the formula PO4.osted on. (Answer #1). DNA, or Deoxyribonucleic Acid, is a double helix, with a backbone that is made up of alternating molecules of deoxyribose, a five-carbon sugar with the chemical formula C5H10O4 and molecules of phosphate, an inorganic salt with the formula PO4.