Final answer:
The neurotransmitter that most closely resembles the effects of alcohol is GABA, an inhibitory neurotransmitter that is enhanced by the presence of alcohol.
Step-by-step explanation:
The neurotransmitter that most closely resembles the effects of alcohol on the nervous system is GABA (gamma-aminobutyric acid). Alcohol acts as a GABA agonist, meaning it increases the activity of GABA receptors in the brain. GABA is an inhibitory neurotransmitter, which slows down brain activity and has a calming effect. Drugs such as ethanol (found in alcoholic beverages), barbiturates, and benzodiazepines work by enhancing the effects of GABA, leading to the depressant effects commonly experienced with alcohol consumption.
The neurotransmitter that most closely resembles the effects of alcohol on the nervous system is GABA. GABA is one of the most common neurotransmitters in the brain and normally has an inhibitory effect on cells. Alcohol promotes the activity of GABA receptors in the brain, leading to its sedative and calming effects.