EAYH_QUIZ_1 - Toxicologic Aspects of Environmental Exposure...

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Toxicologic Aspects of Environmental Exposure 1. Define xenobiotic. means foreign and potentially toxic compound 2. What does the phrase the dose makes the poison mean? it means anything in a large enough dose can become a poison 3. What is the difference between a vector and an agent? a vector is means (air, soil, water and food) that does not cause the disease itself, but spreads infection  by conveying pathogens from one host to another an agent is any chemical, biological, or physical material capable of eliciting a biological response->  vector carries the agents 4. What four processes constitute the toxicokinetic phase of the toxicological process? absorption, distribution, biotransformation, and excretion 5. What physical/chemical property of DDT accounts for its accumulation in fat depots of the body? DDT is lipophilic-fats soluble 6. In what organ does filtration or bulk flow occur to a large extent? In what anatomical structure of this organ does filtration occur? filtration organ-> kidneys organs anatomical structure where filtration occurs-> glomerulus 7. What are some characteristics of the blood-brain barrier? 8. What physical/chemical property of ethanol allows it to pass the blood-brain barrier? What property allows ethanol to be excreted via the respiratory system? 9. Why is xenobiotic biotransformation necessary?
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EAYH_QUIZ_1 - Toxicologic Aspects of Environmental Exposure...

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