Deoxyribose is a pentose
(5-carbon) sugar - formula C5
It is found in DNA
Notice the 5 carbon atoms (grey)
forming the backbone of the molecule, and the oxygen atom (red)
in the ring - which is a 5 sided ring, unlike glucose.
The hydrogen atoms (white) are either attached directly to the carbons, or via oxygen as OH groups - at an angle.
The carbon outside the ring has 2 single hydrogens and an OH group. Deoxyribose differs from ribose in that it lacks an oxygen at carbon 2 (labelled)
- and so has only 2 hydrogen atoms (white)