resin 松香

苏尛涵fiona · 发表于 2012-2-15 22:39:35

废话不多说。21号考的。。为自己为大家~
Other liquid compounds found in plants or exuded by plants, such as sap, latex, or mucilage, are sometimes confused with resin, but are not chemically the same. Saps, in particular, serve a nutritive function that resins do not. There is no consensus on why plants secrete resins. However, resins consist primarily of secondary metabolites or compounds that apparently play no role in the primary physiology of a plant. While some scientists view resins only as waste products, their protective benefits to the plant are widely documented. The toxic resinous compounds may confound a wide range of herbivores, insects, and pathogens; while the volatile phenolic compounds may attract benefactors such as parasitoids or predators of the herbivores that attack the plant.

来源 http://en.wikipedia.org/wiki/Resin#cite_note-1

考过的同学看一下~~ 没考过的同学也看一下~~~

miss绿光 · 发表于 2012-2-15 23:36:35

谢谢LZ~

鱼宝宝724 · 发表于 2012-2-16 16:24:35

这个要顶

害怕坏天气 · 发表于 2012-2-16 18:02:49

好像不是这个

[考古] resin 松香

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