Hexose: Difference between revisions
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imported>David E. Volk (New page: {{subpages}} '''Hexose''' is a chemical term for any sugar molecule that contains six carbon atoms. Sugars with 4, 5 or 7 carbons are called tetroses, pentoses and [[heptos...) |
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'''Hexose''' is a chemical term for any [[sugar]] molecule that contains six [[carbon]] atoms. Sugars with 4, 5 or 7 carbons are called [[tetrose]]s, [[pentose]]s and [[heptose]]s, respectively. In living organisms, the [[aldose]] sugars D-[[allose]], D-[[altrose]], D-[[glucose]], D-[[mannose]], D-[[Gulose]], D-[[Idose]], D-[[Galactose]] and D-[[Talose]] are important in many biological reactions. Likewise, the [[ketose]] sugars D-[[psicose]], D-[[fructose]], D-[[sorbose]] and D-[[tagatose]] are present in living organisms. When hexoses cyclize into six-membered rings, they are referred to as a [[furanose]]. Thus, fructose can cyclize into [[fructopyranose]]. When sugars cyclize into a five carbon ring, they are called a [[furanose]]. When fructose cyclizes into such a five carbon ring, it is called [[fructofuranose]]. | '''Hexose''' is a chemical term for any [[sugar]] molecule that contains six [[carbon]] atoms. Sugars with 4, 5 or 7 carbons are called [[tetrose]]s, [[pentose]]s and [[heptose]]s, respectively. In living organisms, the [[aldose]] sugars <small>D</small>-[[allose]], D-[[altrose]], D-[[glucose]], D-[[mannose]], D-[[Gulose]], D-[[Idose]], D-[[Galactose]] and D-[[Talose]] are important in many biological reactions. Likewise, the [[ketose]] sugars D-[[psicose]], D-[[fructose]], D-[[sorbose]] and D-[[tagatose]] are present in living organisms. When hexoses cyclize into six-membered rings, they are referred to as a [[furanose]]. Thus, fructose can cyclize into [[fructopyranose]]. When sugars cyclize into a five carbon ring, they are called a [[furanose]]. When fructose cyclizes into such a five carbon ring, it is called [[fructofuranose]]. | ||
Revision as of 15:09, 6 February 2008
Hexose is a chemical term for any sugar molecule that contains six carbon atoms. Sugars with 4, 5 or 7 carbons are called tetroses, pentoses and heptoses, respectively. In living organisms, the aldose sugars D-allose, D-altrose, D-glucose, D-mannose, D-Gulose, D-Idose, D-Galactose and D-Talose are important in many biological reactions. Likewise, the ketose sugars D-psicose, D-fructose, D-sorbose and D-tagatose are present in living organisms. When hexoses cyclize into six-membered rings, they are referred to as a furanose. Thus, fructose can cyclize into fructopyranose. When sugars cyclize into a five carbon ring, they are called a furanose. When fructose cyclizes into such a five carbon ring, it is called fructofuranose.