Question

an enzyme known as acetylcholinesterase is present in the synaptic cleft. what is its role?

Explanation:

Acetylcholinesterase breaks down acetylcholine (ACh) in the synaptic cleft. This prevents continuous muscle contraction by removing the neurotransmitter after it has transmitted the signal.

Answer:

Acetylcholinesterase breaks down acetylcholine in the synaptic cleft to prevent continuous muscle contraction.