BIOL354 Study Guide - Midterm Guide: Organochloride, Silt, Partial Pressure
23 Jun 2013
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Toxicology: study of harmful effects incurred by living organisms from exposure to substances which are foreign to them. Xenobiotic: any substance which is foreign to an organism they can be useful or toxic. Anthropogenic: caused/produced by humans; describes origin of a compound which would otherwise not occur normally. Toxin: type of toxicant in which its produced by a living organism ex. snake venom, mycotoxin, tetrodotoxin (sodium channel blocker which paralyzes the muscles while the victim remains fully conscious and dies from asphyxiation) Ecotoxicology: study of the impacts of pollutants upon the structure and function of living organisms and ecological systems. One must first be exposed to a toxicant for there to be any effect: release into environment, exposure to target organism, taken up by target organism, response in target organism. Chimney sweep -> scrotal cancer from pahs formed from incomplete combustion demonstrated by.
