WebRibose isa single-ring pentose [5-Carbon] sugar. The numbering of the carbon atoms runs clockwise, following organic chemistry rules. Note the absence of the hydroxyl(-OH) group on the 2’ carbon in the deoxy-ribose … WebIn chemistry, a pentose is a monosaccharide (simple sugar) with five carbon atoms. [1] The chemical formula of many pentoses is C 5H 10O 5, and their molecular weight is 150.13 g/mol. [2] Pentoses are very important in biochemistry. Ribose is a constituent of RNA, and the related molecule, deoxyribose, is a constituent of DNA.
25.4: Configurations of Aldoses - Chemistry LibreTexts
WebJan 28, 2024 · Two pairs of D/L enantiomers called erythrose and threose. Aldopentoses: 5 carbon sugars with three chiral centers. Aldopentoses have eight (2 3) possible stereoisomers. Four pairs of D/L enantiomers called ribose, arabinose, xylose, and lyxose. Aldohexoses: 6 carbon sugars with four chiral centers. WebThe deoxyribose sugar in DNA is a pentose, a five-carbon sugar. Four carbons and an oxygen make up the five-membered ring; the other carbon branches off the ring. Similar to the numbering of the purine and pyrimidine rings (seen in ), the carbon constituents of the sugar ring are numbered 1'-4' (pronounced "one-prime carbon"), starting with the ... ciphey error: metadata-generation-failed
1.1: The Structure of DNA - Biology LibreTexts
WebDec 24, 2024 · a pentose (five-carbon) sugar; a phosphate group; Each nitrogenous base in a nucleotide is attached to a sugar molecule, which is attached to one or more phosphate groups. ... The difference between the sugars is the presence of the hydroxyl group on the second carbon of the ribose and hydrogen on the second carbon of the deoxyribose. The ... WebThe sugar found in DNA is a variant of the five-carbon sugar called ribose. The structure of ribose is drawn below. Each carbon of ribose is numbered as shown. Because the -OH … cipher wheel code