Which of the following is the most likely effect of applying the naturally occurring acetylcholinesterase inhibitor onchidal (produced by the mollusc Onchidella binneyi) to a neuromuscular junction?
A) the muscle cell would not be able to contract
B) the muscle cell would receive constant stimulation
C) there would be a decrease in the frequency of action potentials
D) there would be no effect on the muscle cell function

Question

Quizplus · Accepted Answer

Acetylcholinesterase inhibitors, like onchidal, prevent the breakdown of acetylcholine in the synaptic cleft, leading to prolonged stimulation of the muscle cell. This results in constant stimulation rather than normal, controlled contraction and relaxation.

Which of the Following Is the Most Likely Effect of Applying