BIOL 112 Chapter 21: Operons Made Easy-Kriti Gaur
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2 May 2016
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Use the data provided below
a) What would be the predicted concentration of DDT due to bioconcentration in the fat of fish that swim in waters containing 15 ppt of the chemical?
b) What would be the predicted concentration of malathion in the fat of fish that swim in waters containing 15 ppt of the chemical?
Pesticide | Solubility in H2O (ppm) | Log K0w | |
| 0.0062 | 5.5-6.2 | |
DDT | 0.0034 | 6.2 | |
Toxaphene | 3 | 5.3 | |
Dieldrin | 0.1 | 6.2 | |
Mirex | 0.20 | 6.9 | |
Malathion | 145 | 2.9 | |
Parathion | 24 | 3.8 | |
Atrazine | 35-70 | 2.2-2.7 |
c) Draw the chemical structures of DDT and malathion. Comment on differences, and why their degrees of bioconcentration are different.