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).
Deoxyribose sugar. Deoxyribose is the sugar molecules found in DNA. They have one less oxygen atom than ribose sugar which is found in RNA. The backbone of the DNA is made up of phosphate and deoxyribose.ibose Sugar. The sugar found in RNA (as opposed to deoxyribose in DNA). Ribose is a 5-carbon sugar, and has one more oxygen on it than deoxyribose does. At the center of each RNA nucleotide is a 5 carbon sugar-ribose sugar, attached to that is the phosphate group & a nitrogenous bases.