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September 16, 2022

Define the terms teratogen, xenobiotic, and carcinogen.

PHHE 351 PC Public Health Environmental Epidemiology & Toxicology Questions

Week 2: Environmental Toxicology

*Numbers correlate with end of chapter questions

3. Define the terms teratogen, xenobiotic, and carcinogen. (1/4 point)

4. Explain the difference between toxins and toxicants. Give an example of each. How does a toxin differ from a poison? (1/2 point)

6. What determines the toxicity of a chemical? To what extend do you agree with the assumption that “all substances are poisons”? (1/2 point)

11. Define the terms dose and threshold. Draw a figure to illustrate a threshold. (1/4 point)

13. What is meant by the term risk assessment? Describe the steps that constitute risk assessment. Give an example of each

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