Diagram Of Ribose And Deoxyribose Sugar

False dna has the base thymine instead of uracil.

Diagram of ribose and deoxyribose sugar. It is a deoxy sugar that is derived from the sugar ribose by the loss of an oxygen atom. As a result dna molecule is twisted to form the characteristic double helix structure of the dna molecule. It lacks the hydroxyl group oh at the c 2 carbon as shown in figure 5 carr 2014. Ribose is an aldopentose a pentose sugar with an aldehyde functional group in position one.

Deoxyribose is a monosaccharide the building block for more complicated sugars. As you can tell by its name deoxyribose is a particular type of sugar known as a pentose monosaccharide which contains five carbon atoms. Ribose which is contained in the name is also considered a pentose monosaccharide. Ribose can be found in rna and it is an organic compound or precisely a pentose monosaccharide.

Deoxyribose is the five carbon sugar found in the nucleotide of dna molecule. Because of the lack of this oxygen atom there is no electrostatic negative charge to repeal the negatively charged phosphate. Dna differs from rna because it contains the sugar deoxyribose instead of ribose it has the base uracil instead of thymine and it is double stranded rather than single stranded. Its name indicates that it is a deoxy sugar meaning that it is derived from the sugar ribose by loss of an oxygen atom.

Unlike in ribose sugar deoxyribose lacks an oxygen atom on carbon 2 of the sugar ring. Hence it uses the prefix deoxy. Differences between ribose and deoxyribose. The molecular formula of ribose is c5h10o5.

While a molecule of ribose has 5 oxygen atoms a molecule of deoxyribose has only 4 oxygen atoms. Another name for the deoxyribose is deoxyribofuranose which is derived from the fact that it is a five membered ring with four carbon atoms and one oxygen atom. As the name implies deoxyribose is a deoxygenated sugar meaning it is derived from ribose sugar by the loss of an oxygen atom. Deoxyribose or more precisely 2 deoxyribose is a monosaccharide with idealized formula hch2choh3h.

Essentially the deoxy sugar is just a pentose sugar ribose with the hydroxyl group at position 2 replaced with a hydrogen instead. Its a normal sugar that has one oxygen atom attached to each carbon atom. Since the pentose sugars arabinose and ribose only differ by the stereochemistry at c2 2 deoxyribose and 2 deoxyarabinose are equivalent although the latter term is rarely used because ribose not arabinose is the precursor to deoxyribose. This video explains the pentose sugars ribose deoxyribose and the nitrogenous bases present in nucleic acids along with the structure of dna proposed by james watson and francis crick.

Both the molecules have 5 carbon atoms and 10 hydrogen atoms. The molecular formula of deoxyribose is c5h10o4.