Final answer:
Organophosphates are insecticides that bind with acetylcholinesterase, leading to overstimulation of the nervous system.
Step-by-step explanation:
Organophosphates are a group of insecticides that are related to nerve gases. They work by irreversibly binding to the enzyme acetylcholinesterase, which inactivates the neurotransmitter acetylcholine. This leads to overstimulation of the nervous system, causing paralysis and eventually death in insects. Some examples of organophosphates include parathion and demeton.