Toxicology Levels 3 & 4 Environmental Study Guide | Comprehensive Exam Review

Tox L3 & 4 - Environmental

1. Accessibles
4 major toxicants for companion 2. Commercial poisons
animals 3. Natural toxins
4. Feeds and feeding

Most toxicant exposures in animals are... environmental

Which of the following toxicants are a A, C, E, F, G 3 multiple choice o

current threat to polar bears?


A. Polychlorinated bophenyls
B. Cadmium
C. Mercury
D. Lead
E. Flame retardants
F. Per-fluoride compounds
G. DDT

Why do toxicants accumulate in polar They are at the top of a food chain. Chemicals are taken up by fish which a
bears? eaten by seals which are eaten by polar bears

What kinds of chemicals can be trapped Lipophilic
in adipose tissue?

, Tox L3 & 4 - Environmental
Which types of drugs can move Hydrophilic and amphiphilic
into/past the phospholipid bilayer?

Which types of drugs cannot enter the Biphasic insoluble
lipid bilayer?

- Soils
Where can you get samples for toxicant - Water
sampling? - Sediment
- Biota (fish, crustaceans, ect)

- Aldrin
- Chlordane
- Dieldrin
- Endrin
What are other persistent organic - Heptachlor
pollutants (POPs)? - Mirex
- Toxaphene
- Hexachlorobenzene
- PCBs
- PBBs