ketose vs ketohexose

ketose and ketohexose both are nouns.

Word	Noun	Adjective	Verb	Adverb
ketose	Yes	No	No	No
ketohexose	Yes	No	No	No

As nouns, ketohexose is a hyponym of ketose; that is, ketohexose is a word with a more specific, narrower meaning than ketose:

ketose: any monosaccharide sugar that contains a ketone group or its hemiacetal
ketohexose: a monosaccharide having six carbon atoms and a ketone group

Other hyponyms of ketose include ketotetrose, ketotriose, ketoheptose.

ketose (noun)	ketohexose (noun)
any monosaccharide sugar that contains a ketone group or its hemiacetal	a monosaccharide having six carbon atoms and a ketone group