Which of the Following Sugars is an Aldopentose

Question

Which of the following sugars is an aldopentose?
A) galactose
B) ribulose
C) ribose
D) xylulose
E) mannose

Accepted Answer

An aldopentose is a five carbon sugar with an aldehyde functional group. Out of the given options, only ribose fits this criteria. The other options are either hexoses or have a ketone functional group.