Answer:
<h2>Postsynaptic </h2>
Explanation:
Acetylcholine receptor is a kind of integral membrane protein that has a very important role in the binding of neurotransmitters such as acetylcholine and some other. Generally, these receptors are present on the postsynaptic cells to receive acetylcholine neurotransmitter to initiate the signal in the neurons cells and some other.
Acetylcholinesterase is a kind of important enzyme that has many important functions in the dissociation of acetylcholine and some other that function as neurotransmitters. This enzyme is also present in the postsynaptic cells.
Examples of current electricity are like starting a car, turning on a light, cooking on an electric stove, watching TV, shaving with an electric razor, playing video games, using a phone, and charging a cell phone.
Hope These examples helped. :D