Biology   EUEE
Questions and answers with explanation

1. What is the primary neurotransmitter affected by most drugs of abuse?
   A. Serotonin
   B. Dopamine
   C. Acetylcholine
   D. GABA (gamma-aminobutyric acid)

   Answer: B. Dopamine

   Explanation: Dopamine is the primary neurotransmitter affected by ...See more

2. Which part of the brain is commonly associated with addiction and reward pathways?
   A. Cerebellum
   B. Hippocampus
   C. Amygdala
   D. Nucleus accumbens

   Answer: D. Nucleus accumbens
Explanation: The nucleus accumbens is a ...See more

3. What is the term for the phenomenon where higher doses of a drug are needed to achieve the same effect over time?
   A. Tolerance
   B. Withdrawal
   C. Dependence
   D. Overdose

   Answer: A. Tolerance
Explanation: Tolerance refers to the body's ...See more

4. Which class of drugs depresses the central nervous system and slows down brain activity?
   A. Stimulants
   B. Depressants
   C. Hallucinogens
   D. Opioids

   Answer: B. Depressants
   Explanation: Depressant drugs slow down brain activity and ...See more

5. What is the term for the physiological and psychological symptoms experienced when drug use is discontinued?
   A. Tolerance
   B. Withdrawal
   C. Dependence
   D. Addiction

   Answer: B. Withdrawal
   Explanation: Withdrawal refers to the symptoms that occur ...See more

6. Which neurotransmitter is commonly associated with pleasure, reward, and addiction in the context of drug abuse?
   A. Serotonin
   B. Dopamine
   C. Acetylcholine
   D. GABA (gamma-aminobutyric acid)

   Answer: B. Dopamine
   Explanation: Dopamine is a neurotransmitter involved in ...See more

7. What is the term for the compulsive, uncontrollable use of a substance despite negative consequences?
   A. Tolerance
   B. Withdrawal
   C. Dependence
   D. Addiction

   Answer: D. Addiction
   Explanation: Addiction is characterized by ...See more

8. Which class of drugs alters perception, mood, and cognitive processes, often leading to hallucinations?
   A. Stimulants
   B. Depressants
   C. Hallucinogens
   D. Opioids

   Answer: C. Hallucinogens
   Explanation: Hallucinogens are drugs that distort ...See more

9. What is the term for the intense craving for a drug that can occur even after long periods of abstinence?
   A. Tolerance
   B. Withdrawal
   C. Relapse
   D. Craving

   Answer: D. Craving
   Explanation: Craving refers to the strong desire or ...See more

10. Which part of the brain is responsible for decision-making, impulse control, and judgment, often impaired by drug abuse?
    A. Cerebellum
    B. Prefrontal cortex
    C. Brainstem
    D. Thalamus

    Answer: B. Prefrontal cortex
    Explanation: The prefrontal cortex is involved in ...See more

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