Oct 14, 2015 · A hexose, which is generically a sugar that had six carbons in its straight-chained form. Simply put, "ose" is the suffix for a sugar, and "hex" is the prefix for six. A hexose originally has 6 carbons as a straight-chained molecule, and after being put into water, it rapidly interconverts in an equilibrium between its straight-chained form and its cyclic form. An aldose (sugar with an ...