Drug Test Study Guide What drug classification is alcohol? depressant How much alcohol can the body detoxify in an hour? ? ounce What 3 main organs does alcohol affect? Heart, brain, and liver. What does BAC stand for? Blood alcohol content What drug is the oldest and most abused in the world? Alcohol 12 oz. of beer = __5__oz of wine = __1_ oz. liquor Is alcohol physically or psychologically addictive? Both What is the legal BAC level for a DUI in Ohio if you are over 21? 21 years old or older - 0.08%. Driving a commercial motor vehicle - 0.04%. Younger than 21 years old - 0.02%. What plant does Marijuana come from? Cannabis sativa plant What is the classification for marijuana? Cannabis