MDCAT Biology MCQ #2428

A neurotransmitter is released into the synaptic cleft to propagate a signal. Which enzyme specifically inactivates acetylcholine to prevent continuous stimulation?

MDCAT Biology MCQ #2428

  1. Question 1

    Q1. A neurotransmitter is released into the synaptic cleft to propagate a signal. Which enzyme specifically inactivates acetylcholine to prevent continuous stimulation?

    • A) Monoamine oxidase
    • B) Catechol-O-methyltransferase
    • C) Acetylcholinesterase
    • D) Tyrosine hydroxylase

    Answer: Acetylcholinesterase

    Explanation: Acetylcholinesterase hydrolyzes acetylcholine to terminate the signal; Adrenaline is a different neurotransmitter and does not break down acetylcholine in synapses.