The Following Are the Steps Involved in Transmission at a Cholinergic

question 26

Multiple Choice

The following are the steps involved in transmission at a cholinergic synapse. 1. Chemically gated sodium channels on the postsynaptic membrane are activated.
2) Calcium ions enter the synaptic knob.
3) Acetylcholinesterase hydrolyzes acetylcholine.
4) An action potential depolarizes the synaptic knob at the presynaptic membrane.
5) The synaptic knob reabsorbs choline.
6) Acetylcholine is released from storage vesicles by exocytosis.
7) Acetylcholine binds to receptors on the postsynaptic membrane.
8) Calcium ions are removed from the cytoplasm of the synaptic knob.
The correct sequence for these events is

• A) 2, 5, 4, 6, 7, 1, 8, 3.
• B) 4, 2, 6, 7, 1, 8, 3, 5.
• C) 6, 4, 2, 7, 1, 8, 3, 5.
• D) 2, 4, 6, 7, 1, 8, 3, 5.
• E) 4, 2, 6, 7, 8, 5, 3, 1.

---

Definitions:

Oligopolistic Industry

A market structure characterized by a small number of firms that dominate the market, leading to competitive yet interdependent pricing and marketing strategies.

Collude Effectively

To engage in a secret agreement or cooperation among parties, often competitors, for a deceitful or illegal purpose, such as fixing prices or rigging markets.

Pure Monopoly

describes a market structure where a single company has exclusive control over the supply of a product or service, with no close substitutes.

Cartel Agreement

An arrangement among competing firms to control prices or output in a market, often to limit competition.