| Term 
 | Definition 
 
        | any foreign substance taken into the body, it may produce beneficial effects or they may be toxic |  | 
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        | Term 
 | Definition 
 
        | Substances that produce adverse biological effects |  | 
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        | Term 
 | Definition 
 
        | Toxic metabolites of an xenobiotic |  | 
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        | Term 
 | Definition 
 
        | Specific proteins produced by living organisms that exhibit acute (immediate) effects |  | 
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        | Term 
 | Definition 
 
        | Toxicants that cause immediate death or illness when exposed to small amounts |  | 
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        | Term 
 
        | Drugs can be classified by- |  | Definition 
 
        | Source chemical formula
 mode of action
 therapeutic use
 system acted upon
 |  | 
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        | Term 
 | Definition 
 
        | A chemical substance that has actions on living tissue |  | 
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        | Term 
 | Definition 
 
        | amount of xenobiotic encounted in the environment |  | 
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        | Term 
 | Definition 
 
        | The actual amount of the exposed dose that enters the body |  | 
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        | Term 
 | Definition 
 
        | Dose which is administered |  | 
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        | Term 
 
        | Factors affecting bio availability |  | Definition 
 
        | Absorption, Distribution, Metabolism, Excretion |  | 
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        | Term 
 | Definition 
 
        | pertains to the elimination or ejection of the xenobiotic substance and its metabolites by specific excretory organs |  | 
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        | Term 
 | Definition 
 
        | pertains to the removal of the absorbed xenobiotic substances and its metabolites by the metabolism |  | 
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        | Term 
 | Definition 
 
        | most xenobiotics introduced into the body undergo chemical changes which render them less toxic |  | 
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        | Term 
 | Definition 
 
        | most xenobiotics introduced into the body undergo chemical changes which render them more toxic after biotransformation |  | 
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        | Term 
 | Definition 
 
        | changes the chemical structure and proberties of chemical comounds |  | 
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        | Term 
 | Definition 
 
        | reduction, hydrolysis, oxidisation, hydration, isomerisation, dehalogenation |  | 
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        | Term 
 | Definition 
 
        | Some products of phase 1 metabolism and conjugated to hyrophillic side groups |  | 
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        | Term 
 | Definition 
 
        | Score of how often journal articles are cited in other publications |  | 
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        | Term 
 | Definition 
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