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Topic: Aldohexose

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	Glucose - Wikipedia, the free encyclopedia
		Glucose contains six carbon atoms and an aldehyde group and is therefore referred to as an aldohexose.
		The glucose molecule can exist in an open-chain (acyclic) and ring (cyclic) form, the latter being the result of an intramolecular reaction between the aldehyde C atom and the C-5 hydroxyl group to form an intramolecular hemiacetal.
		In this ring, each carbon is linked to an hydroxyl side group with the exception of the fifth atom, which links to a sixth carbon atom outside the ring, forming a CH OH group.
	en.wikipedia.org /wiki/Glucose (1205 words)

	Carbohydrate - Wikipedia, the free encyclopedia
		For instance, glucose is an aldohexose, fructose a ketohexose, and ribose an aldopentose.
		Further, each carbon atom that supports a hydroxyl group (except for the first and last) is a stereogenic centre, allowing a number of different enantiomers and stereoisomers for carbohydrates with the same basic structure.
		For instance, galactose is an aldohexose but has different properties from glucose because the atoms are arranged differently.
	en.wikipedia.org /wiki/Carbohydrates (1147 words)

	CarbohydratesII
		At the outset Fischer knew that D-glucose was an aldohexose.
		Fischer knew that he could not assign absolute stereochemistry to any chiral center, so he arbitrarily designated those aldohexoses with the OH group at C-5 projecting to the right as D sugars.
		Draw Fischer projections of the aldaric acids that would be formed from aldohexoses 2 and 6 and 4 and 8.
	www.usm.maine.edu /~newton/Chy251_253/Lectures/CarbohydratesII/CarbohydratesII.html (1017 words)

	Olympus MIC-D: Polarized Light Gallery - Mannose
		Two isomers, mannopyranose and mannofuranose, feature 6 carbons, 12 hydrogens, and 6 oxygen atoms per molecule, as does glucose, and a melting point of 132 degrees Celsius.
		Known also as aldohexose, mannose has a molecular weight of 180.16 and forms hexagonal ring structures with one carbon substituted with an oxygen atom and aldehyde group.
		The monosaccharide is found naturally in glycolipids and glycoproteins of plants, fungi, and bacteria in polymerized forms called mannans that serve as food energy stores.
	www.olympusmicro.com /micd/galleries/polarized/mannose.html (461 words)

	Glucose (Site not responding. Last check: 2007-11-01)
		Glucose is a simple, single unit, aldohexose, sugar called a monosaccharide.
		It is the optical isomer of glucose, d-glucose, also know by its old name dextrose, that is the most common, naturally occurring form of glucose.
		Hence an example of a aldohexose is glucose (see diagram).
	www.monashscientific.com.au /Glucose.htm (155 words)

	Acyclic Forms of [1-13C]Aldohexoses in Aqueous Solution: Quantitation by 13C NMR and Deuterium Isotope Effects on ...
		C at C1 in order to detect and quantify the percentages of acyclic forms, and to measure and/or confirm percentages of furanoses and pyranoses, in aqueous solution.
		Hydrate/aldehyde ratios vary with aldohexose configuration, ranging from 1.5 to 13, with gluco exhibiting the smallest ratio and gulo the largest.
		H isotope effect at H1 and/or that the observed effect cannot be reliably interpreted due to complications arising from the involvement of acyclic aldehyde forms as intermediates in the interconversion of cyclic forms.
	pubs.acs.org /cgi-bin/abstract.cgi/joceah/2001/66/i19/abs/jo010541m.html (311 words)

	Metabolic and Secretory Interactions between D-Glucose and D-Fructose in Islets from GK Rats -- Giroix et al. 140 (12): ...
		coincided with an impaired secretory response to the aldohexose.
		of the aldohexose, was severely impaired in the GK rats.
		of the aldohexose (100.0 ± 3.7%; n = 22).
	endo.endojournals.org /cgi/content/full/140/12/5556 (4474 words)

	Carbohydrates
		D-Glucose is an aldohexose with four stereogenic centers stacked on top of one another.
		Five and six-membered cyclic hemiacetals are particularly stable and many carbohydrates therefore exist in equilibrium between open-chain and cyclic forms.
		Pyranose is the six-membered cyclic hemiacetal formed from aldohexoses.
	www.chem.latech.edu /~deddy/chem121/Carbohydrates.htm (2048 words)

	5158
		An aldohexose, E, undergoes nitric acid oxidation to give an optically inactive diacid.
		Using chemical equations and Fischer structures, explain why the oxidation of optically active galactose produces optically inactive galactaric acid.
		Assign structures to the aldohexoses D-(+)-galactose and D-(+)-talose on the basis of the following evidence.
	jchemed.chem.wisc.edu /JCEDLib/QBank/collection/organic/files/OC-22-225Q/OC-22-225-JCQ.htm (255 words)

	Supplement HW Chapter 18 - Carbohydrates
		Draw the alpha-furanose (5-membered ring) form of any aldopentose and any aldohexose.
		Draw the beta-pyranose (6-membered ring) form of any aldohexose and any ketohexose.
		Show the product of mutarotation of these structures.
	www.personal.kent.edu /~cearley/PChem/hw/hw18.htm (249 words)

	aldohexose - Dictionnaire Français-Anglais WordReference.com
		We found no English translation for 'aldohexose' in our French to English Dictionary.
		Or did you want to translate 'aldohexose' from English to French?
		Forum discussions with the word(s) 'aldohexose' in the title:
	www.wordreference.com /fren/aldohexose (49 words)

	Final Exam - Experimental Biochem Spring 1999 (Site not responding. Last check: 2007-11-01)
		An aldohexose contains how many asymmetric C atoms?
		An aldohexose could have how many conformations in solution (as might be shown by silylation and gas chromatography):
		Kinetic control is shown in the specificity of the
	aesop.rutgers.edu /~dbm/99examans.html (1477 words)

	Definition of aldohexose - Merriam-Webster Online Dictionary (Site not responding. Last check: 2007-11-01)
		Click here to search for another word in the Merriam-Webster Online Dictionary.
		For More Information on "aldohexose " go to Britannica.com
		Get the Top 10 Search Results for "aldohexose "
	www.bonus.com /contour/merriam_webster/http@@/www.m-w.com/dictionary/aldohexose (56 words)

	[No title]
		Each of these questions is worth 2 marks, so think carefully.
		Count up the chiral carbons in glucose and hence work out how many different aldohexose compounds there are in all.
		Which of the following statements about reducing sugars and carbohydrates is incorrect?
	www.tacomacc.edu /home/worchard/Chem102/Quiz4old.doc (363 words)

	Chem 335 Problems IV (Site not responding. Last check: 2007-11-01)
		Do you expect an isotope effect for the benzyne reaction used to produce phenol from chlorobenzene?
		Write out the two D- aldohexose sugars that produce meso diacid derivatives on oxidation with nitric acid.
		Explain how this information coupled with sugar lengthening reactions can be used to unambiguously determine the structure of these two sugars.
	www.pittstate.edu /chem/courses/chem335/ch335as4.html (252 words)

	Genolevures : Pathways conservation
		weakly similar to spP17709 Saccharomyces cerevisiae YCL040w GLK1 aldohexose specific glucokinase, start by similarity
		highly similar to CA0263CaGLK1 Candida albicans aldohexose specific glucokinase, start by similarity
		Exhibits growth defect on a fermentable carbon source.
	cbi.labri.fr /Genolevures/path/pathway-00521.html (822 words)

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