A monosaccharide with an aldehyde functional group is classified as a(n):
Answer
Aldose
Explanation
A monosaccharide containing an aldehyde group is an **aldose**; one containing a ketone group is a ketose. Glucose is an aldohexose, while fructose is a ketohexose. **Key takeaway:** Aldose and ketose classification depends on the carbonyl functional group. **Glossary:** Carbonyl: a carbon atom double-bonded to oxygen.