Ribulose is a ketopentose — a monosaccharide containing five carbon atoms, and including a ketone functional group. It has chemical formula {carbon}5{hydrogen}10{oxygen}5. Two enantiomers are possible, D-ribulose (D-erythro-pentulose) and L-ribulose (L-erythro-pentulose). D-Ribulose is the diastereomer of D-xylulose. Ribulose sugars are composed...
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http://en.wikipedia.org/wiki/Ribulose
D-erythro-Pentulose; d-adonose; d-erythro-2-ketopentose;the 2-keto isomer of ribose. As the 5-phosphate, it participates in the pentose monophosphate shunt; as the 1,5-bisphosphate, it combines with CO2 at the start of the photosynthetic process in green plants ('carbon dioxide trap'); d-ribulose is the epimer of d-xylulose. ... (05 Mar 2000) ...
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http://www.encyclo.co.uk/local/20973
Type: Term Pronunciation: rī′byū-lōs Definitions: 1. The 2-keto isomer of ribose. As the 5-phosphate, it participates in the pentose monophosphate shunt; as the 1,5-bisphosphate, it combines with CO
2 at the start of the photosynthetic process in green plants ('carbon dioxide trap'); d-ribulose is the epimer of d-xylu...
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http://www.medilexicon.com/medicaldictionary.php?t=78507
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