A five-carbon sugar in which carbons 2, 3, or 4 make up part of a carbonyl group; e.g., ribulose.

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ke·to·pen·tose .kēt-ō-'pen-.tōs, -.tōz n a five-carbon sugar containing the keto group CO

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ke·to·pen·tose (ke″to-penґtōs) any ketose containing five carbon atoms, such as ribulose or xylulose.

Medical dictionary. 2011.

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  • ketopentose — noun A pentose that is also a ketose …   Wiktionary

  • Ketopentose — Ke|to|pen|to|se: svw. ↑ Pentulose …   Universal-Lexikon

  • Monosaccharide nomenclature — is a set of conventions used in chemistry to name the compounds known as monosaccharides or simple sugars the basic structural units of carbohydrates, which cannot be hydrolysed into simpler units.[1] Contents 1 Systematic name of molecular graph …   Wikipedia

  • Monosaccharide — Monosaccharides (from Greek monos: single, sacchar: sugar) are the most basic units of biologically important carbohydrates. They are the simplest form of sugar and are usually colorless, water soluble, crystalline solids. Some monosaccharides… …   Wikipedia

  • Xylulose — Xylulose[1][2] …   Wikipedia

  • Ribulose — D Ribulose IUPAC name …   Wikipedia

  • pentulose — A ketopentose; e.g., ribulose, xylulose. * * * pen·tu·lose (penґtu lōs) ketopentose …   Medical dictionary

  • xylulose — threo Pentulose; a 2 ketopentose. l X. appears in the urine in cases of essential pentosuria; it is also an intermediate in the glucuronate pathway. SYN: xyloketose. x. 5 phosphate the d isomer is an intermediate in the pentose phosphate …   Medical dictionary

  • Disaccharide — A disaccharide or biose[1] is the carbohydrate formed when two monosaccharides undergo a condensation reaction which involves the elimination of a small molecule, such as water, from the functional groups only. Like monosaccharides, disaccharides …   Wikipedia

  • Glucose — This article is about the naturally occurring D form of glucose. For the L form, see L Glucose. D glucose …   Wikipedia

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