Alcohol Influence and Physiological Effects Flashcards

What does BAC stand for in the context of DUI enforcement?

Answer: Blood Alcohol Concentration

BAC stands for Blood Alcohol Concentration, which measures the amount of alcohol in a person's bloodstream expressed as a percentage.

In most U.S. states, the per se BAC limit for non-commercial adult drivers is:

Answer: 0.08%

The federally encouraged and most widely adopted per se BAC limit for adult non-commercial drivers in the U.S. is 0.08%.

Which organ is primarily responsible for metabolizing alcohol in the human body?

Answer: Liver

The liver is the primary organ responsible for metabolizing approximately 90–95% of consumed alcohol through enzymatic processes.

Approximately how long does it take the average adult liver to metabolize one standard drink?

Answer: One hour

On average, the human liver metabolizes alcohol at a rate of approximately one standard drink per hour, though this varies by individual.

Based on its effects on the central nervous system, alcohol is classified as which type of drug?

Answer: Depressant

Alcohol is a central nervous system depressant that slows brain function and neural activity, impairing judgment, coordination, and reaction time.

Which of the following factors does NOT affect an individual's BAC level?

Answer: Eye color

Eye color has no physiological relationship to how alcohol is absorbed or metabolized; BAC is influenced by weight, consumption rate, food, and gender.

A 'per se' DUI law means that a driver can be convicted because:

Answer: The driver's BAC meets or exceeds the legal limit, regardless of observable impairment

A per se law makes it illegal to drive at or above the specified BAC level automatically, without requiring separate proof of actual impairment.