Question

Motor neurons release the neurotransmitter acetylcholine (ACh) and acetylcholinesterase degrades ACh in the synapse. If a neurophysiologist applies onchidal (a naturally occurring acetylcholinesterase inhibitor produced by the mollusc Onchidella binneyi) to a synapse, what would you expect to happen?
A) paralysis of muscle tissue.
B) convulsions due to constant muscle stimulation.
C) decrease in the frequency of action potentials.
D) no effect.

Answer 1

Answer:

b

Explanation:

Answer 2

Answer:

B) convulsions due to constant muscle stimulation.

Explanation:

Acetylcholine is a chemical that is found between the nerve synapses or space between nerve cells. When activated, one of its functions is to cause the contraction of skeletal muscles.

Acetylcholinesterase is an inhibiting chemical that prevents the breakdown of acetylcholine this causes a break in between each muscle contraction to generate smooth movement, therefore, inhibiting this chemical using onchidal results in ACh not being broken down, ACh can then build up in the nervous system. If acetylcholinesterase is unable to breakdown or remove acetylcholine, the muscle can continue to move uncontrollably resulting in convulsions.