Ever wonder what a glucose molecule looks like in 3D? Here’s a cool site from the University of Massachusetts that offers “3D” models of all kinds of familiar molecular structures (and some not-so-familiar!) Click this link to go straight to glucose.
(or you can copy/paste http://biomodel.uah.es/en/model3/monosac.htm)

The site is also available em português: http://biomodel.uah.es/pt/model3/monosac.htm