Pyrenoids are sub-cellular micro-compartments found in chloroplasts of many algae, and in a single group of land plants, the hornworts. Pyrenoids are associated with the operation of a carbon-concentrating mechanism (CCM). Their main function is to act as centres of carbon dioxide (CO2) fixation, by generating and maintaining a CO2 rich environmen...
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http://en.wikipedia.org/wiki/Pyrenoid
• (n.) A transparent body found in the chromatophores of certain Infusoria.
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(from the article `algae`) ...messenger ribonucleic acid (mRNA) is translated into protein. The ribosomes accurately interpret the genetic code of the DNA so that each protein ...
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http://www.britannica.com/eb/a-z/p/137
<plant biology> Small body found within some chloroplasts, that may contain protein. In green algae may be involved in starch synthesis. ... (18 Nov 1997) ...
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Small body found within some chloroplasts, that may contain protein. In green algae may be involved in starch synthesis.
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Py·re'noid noun [ Greek ... like a kernel. See
Pyrena , and
-oid .]
(Zoology) A transparent body found in the chromatophores of certain Infusoria.
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http://www.encyclo.co.uk/webster/P/203
Type: Term Pronunciation: pī′rĕ-noyd Definitions: 1. One of the minute luminous bodies sometimes visualized in the chromatophores of some protozoa, such as Euglena viridis.
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