Organisms generalized element content

To start our approach we divide this chapter into parts. In the first part we outline the general chemical element content of all organisms (Sections 4.2-4.4) next, we look at the uses of non-metal elements and their in small molecule combinations (Sections 4.5 1.8) while in the third part we extend this description to their major biopolymers (Sections 4.9-4.13). Section 4.14 is a summary of these sections. In Sections 4.15 and 4.16 we examine the metal ion content of cells and combinations of these ions with organic molecules. The final sections integrate these descriptions with those of the principles of bioenergetics outlined in Chapter 3. 

While heavy metal levels in target organs are a result of a long-term, chronic exposure, the elemental content of unwashed sheep wool reflects an exposure to dust, particulate or general recent fallout pollution. The results for animals from the risk area are similar to reported data regarding pollution due to motor vehicle emission as alongside a busy motorway (Ward and Savage, 1994). 

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