ketose vs simple sugar

ketose and simple sugar both are nouns.

Word	Noun	Adjective	Verb	Adverb
ketose	Yes	No	No	No
simple sugar	Yes	No	No	No

As nouns, simple sugar is a hypernym of ketose; that is, simple sugar is a word with a broader meaning than ketose:

ketose: any monosaccharide sugar that contains a ketone group or its hemiacetal
simple sugar: a sugar (like sucrose or fructose) that does not hydrolyse to give other sugars; the simplest group of carbohydrates

Other hypernyms of ketose include monosaccharide, monosaccharose.

ketose (noun)	simple sugar (noun)
any monosaccharide sugar that contains a ketone group or its hemiacetal	a sugar (like sucrose or fructose) that does not hydrolyse to give other sugars; the simplest group of carbohydrates