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Bases biological fixation

Biological fixation is done by specialized microbes that convert the N2 into ammonia (NHj"), nitrate ions (NOj"), or urea ((NH2)2CO). Although ammonia can be taken up by plants through the roots, it s more often the ammonium ion (NH ), that s the conjugate acid of ammonia, that is used by biological systems. (See Chapter 5 for a quick recap on conjugate acids and bases.)... [Pg.272]

Despite the drawbacks of chemical-fixation based procedures [21,24], most of our current knowledge on biological ultrastnicture relies on this approach. In contrast to cryopreparative procedures, chemical fixation does not require special skills and instrumentation. [Pg.1634]

Since biological mobility and specificity are based on non-covalent interactions, the model must possess a good (hydrophobic) fixation area. [Pg.230]

See other pages where Bases biological fixation is mentioned: [Pg.70]    [Pg.249]    [Pg.276]    [Pg.118]    [Pg.85]    [Pg.517]    [Pg.191]    [Pg.627]    [Pg.831]    [Pg.554]    [Pg.627]    [Pg.643]    [Pg.123]    [Pg.131]    [Pg.1406]    [Pg.96]    [Pg.84]    [Pg.87]    [Pg.87]    [Pg.459]    [Pg.423]    [Pg.84]    [Pg.206]    [Pg.16]    [Pg.683]    [Pg.714]    [Pg.228]    [Pg.2]    [Pg.290]    [Pg.266]    [Pg.664]    [Pg.82]    [Pg.271]    [Pg.911]    [Pg.122]    [Pg.387]    [Pg.269]    [Pg.273]    [Pg.308]    [Pg.34]    [Pg.271]    [Pg.61]    [Pg.88]    [Pg.1111]   
See also in sourсe #XX -- [ Pg.70 ]



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Biological fixation

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