Exposure to organophosphate insecticides inhibits which serum enzyme?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Enhance your knowledge with the Ciulla Clinical Chemistry Test. Study with interactive quizzes, featuring flashcards and multiple-choice questions. Each question offers hints and explanations for better understanding. Prepare effectively and excel in your exam!

Multiple Choice

Exposure to organophosphate insecticides inhibits which serum enzyme?

Explanation:
Organophosphate insecticides inhibit acetylcholinesterase, the enzyme that breaks down acetylcholine at nerve endings and synapses. When this enzyme is blocked, acetylcholine accumulates, causing overstimulation of cholinergic receptors and the typical symptoms of poisoning. In the blood, this activity is referred to as cholinesterase (often the plasma or butyrylcholinesterase form). The other enzymes listed—lipase, creatine kinase, and alkaline phosphatase—don’t participate in acetylcholine breakdown and aren’t the targets of organophosphate inhibition. So the serum enzyme inhibited by organophosphate exposure is cholinesterase.

Organophosphate insecticides inhibit acetylcholinesterase, the enzyme that breaks down acetylcholine at nerve endings and synapses. When this enzyme is blocked, acetylcholine accumulates, causing overstimulation of cholinergic receptors and the typical symptoms of poisoning. In the blood, this activity is referred to as cholinesterase (often the plasma or butyrylcholinesterase form). The other enzymes listed—lipase, creatine kinase, and alkaline phosphatase—don’t participate in acetylcholine breakdown and aren’t the targets of organophosphate inhibition. So the serum enzyme inhibited by organophosphate exposure is cholinesterase.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy