
Secondary metabolites are organic compounds that are not directly involved in the normal growth, development, or reproduction of an organism. Unlike primary metabolites, absence of secondary metabolites does not result in immediate death, but rather in long-term impairment of the organism`s survivability, fecundity, or aesthetics, or perhaps in n....
Found on
http://en.wikipedia.org/wiki/Secondary_metabolite

(from the article `angiosperm`) Another aspect of angiosperm diversity is found in the production of secondary compounds, such as alkaloids, quinones, essential oils, and ... The evolutionary success of the Asterales may depend more on their arsenal of defensive secondary metabolites than on their morphology. They lack the ... [2 rel...
Found on
http://www.britannica.com/eb/a-z/s/56

<biochemistry> Chemicals that are usually unique to one organism or class of organisms, and are not essential to cell survival. ... They perform specialised functions, for example, degrading food sources or fighting off other organisms. Many of the chemicals that plants or microorganisms produce that are of biochemical interest are secondary ...
Found on
http://www.encyclo.co.uk/local/20973

Type: Term Definitions: 1. a metabolite synthesized in a step in secondary metabolism.
Found on
http://www.medilexicon.com/medicaldictionary.php?t=54558
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