Lecture 4 (Pesticides Poisoning)

Question 1

what is an insecticide?

Answer 1

controls insects

Question 2

what is an herbicide?

Answer 2

controls weeds

Question 3

what is a pesticide?

Answer 3

general term for control of pests (insects, weeds, plant disease)

Question 4

what is a fungicide?

Answer 4

controls fungal growth

Question 5

what is a piscicide?

Answer 5

controls fish growth

Question 6

when were pesticides first recognized?

Answer 6

4500 yrs ago

2500 BC by Sumerians

Question 7

what is DDT?

Answer 7

first globally-used synthetic insecticide

dichlorodiphenyl-trichloroethane

kills mosquitos

Question 8

effects of DDT?

Answer 8

killed birds by weakening their egg shells

endocrine disruptor in humans

Question 9

what are examples of organophosphates?

Answer 9

malathion

methyl parathion

diazinon

Question 10

what are organophosphates?

Answer 10

by-produce of nerve gas and chemical warfare research WWII in Germany

malathion, diazinon, ortane

Question 11

effects of organophosphates on humans?

Answer 11

inactivate cholinesterase enzymes –> synaptic or nerve poison

harms brains