Question:medium

Which enzyme is responsible for cleaning neurotransmitters in the synaptic cleft?

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Inhibition of acetylcholinesterase is a common mechanism of action for certain nerve agents and pesticides, leading to the accumulation of acetylcholine and continuous nerve signal transmission.
Updated On: Nov 26, 2025
  • Acetylcholinesterase
  • DNA polymerase
  • RNAase
  • Lipase
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The Correct Option is A

Solution and Explanation

Acetylcholinesterase hydrolyzes the neurotransmitter acetylcholine in the synaptic cleft into acetate and choline. This action terminates neuronal signal transmission, preventing prolonged presence of acetylcholine and ensuring proper synaptic function by avoiding continuous post-synaptic neuron stimulation.

Role of Acetylcholinesterase: \[ \text{Acetylcholine} \xrightarrow{\text{Acetylcholinesterase}} \text{Acetate} + \text{Choline} \] 

 

Importance in Neural Function: Rapid neurotransmitter clearance is crucial for: Preventing neuronal overstimulation. Precisely controlling muscle contractions. Maintaining nerve signal speed and accuracy. 

Conclusion: Acetylcholinesterase is essential for terminating neurotransmitter signals, thus regulating and optimizing neural communication. 

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