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Chapter 4: Problem 6

Which of the following drugs is classified as a stimulant? a. marijuana b. cocaine c. heroin d. alcohol e. LSD

Short Answer

Expert verified
b. cocaine

Step by step solution

01

Identify the Drug Categories

First, identify the category to which each drug belongs. Generally, drugs are classified into categories such as stimulants, depressants, hallucinogens, and opioids.
02

Define What a Stimulant Is

A stimulant is a substance that increases the activity of the nervous system. Stimulants typically make a person feel more alert, have increased energy, and sometimes provide a euphoric feeling.
03

Classify Each Drug

Now, classify each listed drug according to its known effects:- **Marijuana**: Often classified as a depressant or hallucinogen.- **Cocaine**: A well-known stimulant that increases energy and alertness.- **Heroin**: An opioid, mainly used as a depressant.- **Alcohol**: Classically classified as a depressant.- **LSD**: A hallucinogen that alters perception and cognition.
04

Select the Stimulant

After analysis in the previous step, it is clear that cocaine is a stimulant.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Understanding Drug Classification
Drugs can be classified into various categories based on their effects on the mind and body. These categories help us understand what a substance might do.
  • **Stimulants**: Increase nervous system activity, making you feel more alert and energetic.
  • **Depressants**: Slows down nervous system activity, often making you feel relaxed or sleepy.
  • **Hallucinogens**: Alter your perception, making you see or hear things that aren't there.
  • **Opioids**: Mainly used for pain relief but can also produce feelings of euphoria.
Understanding these classifications makes it easier to predict the effects of a particular drug.
Nervous System Activity
The nervous system is like the body's communication network. It includes the brain, spinal cord, and all the nerves that connect them to the rest of the body. Different drugs can affect the nervous system in various ways.
Stimulants increase nerve activity, making neurons fire faster. This can make you feel more alert, energetic, and awake. Common effects include:
  • Faster heart rate
  • Increased blood pressure
  • Reduced appetite
  • Enhanced focus and attention
For example, caffeine in coffee or tea is a mild stimulant. Cocaine, on the other hand, is a strong stimulant and has much more powerful effects on the nervous system.
Substance Effects
Different substances produce a variety of effects based on their classification.
Let's look at the drugs mentioned in the exercise and their effects:
  • **Marijuana**: Often causes relaxation and altered sensory perception; sometimes acts as a depressant or hallucinogen.
  • **Cocaine**: Increases energy and alertness; a powerful stimulant.
  • **Heroin**: Causes intense euphoria followed by a deep sense of relaxation; an opioid.
  • **Alcohol**: Usually relaxes the mind and body; a well-known depressant.
  • **LSD**: Alters visual and auditory perceptions; a hallucinogen.
Knowing these effects helps us understand why and how each drug fits into its respective category. For instance, the stimulating effects of cocaine make it clear why it is classified as a stimulant.

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