n.
Any of various carbohydrates containing a ketone group.
ketose
Dictionary:
ke·tose (kē'tōs')  |
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Any sugar that contains a ketone group.
| WordNet: ketose |
Note: click on a word meaning below to see its connections and related words.
The noun has one meaning:
Meaning #1:
any monosaccharide sugar that contains a ketone group or its hemiacetal
| Wikipedia: Ketose |
A ketose is a sugar containing one ketone group per molecule.
With 3 carbon atoms, dihydroxyacetone is the simplest of all ketoses and is the only one having no optical activity. Ketoses can isomerize into an aldose when the carbonyl group is located at the end of the molecule. Such ketoses are reducing sugars.
List of ketoses
All ketoses listed here are 2-ketones:
- Trioses: dihydroxyacetone
- Tetroses: erythrulose
- Pentoses: ribulose, xylulose
- Hexoses: fructose, psicose, sorbose, tagatose
- Heptoses: sedoheptulose
- Octoses: D-manno-octulose (the basis for Kdo)
- Nonoses: D-glycero-D-galacto-nonulose (the basis for Neu)
Qualitative reaction
General qualitative reaction for ketoses is Seliwanoff's test.
See also
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Learn More
 | hexulose (biochemistry) |
| heptulose (biochemistry) |
| de Brun-van Eckstein rearrangement (organic chemistry) |
 | Is sucrose a ketose or aldose? Read answer... |
| What is an example of a ketose? Read answer... |
| What are functional groups in a ketose sugar? Read answer... |
Help us answer these
 | Is it possile to convert ketose to aldose? |
| Is Lactose a ketose or an aldose? |
| Why is the difference between a ketose and an aldopentose? |
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 | Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved. Read more |
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| Medical Dictionary. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Read more |
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| Veterinary Dictionary. Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved. Read more |
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| WordNet. WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved. Read more |
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| Wikipedia. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article "Ketose". Read more |
Related answers
- What is an example of a ketose?
- What are functional groups in a ketose sugar?
- What is the difference between ketose and aldose?
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Mentioned in
- hexulose (biochemistry)
- heptulose (biochemistry)
- de Brun-van Eckstein rearrangement (organic chemistry)
- erythrulose (biochemistry)
