CAPE Biology Unit 2 · 2012 · Paper 1 · Question Q43

Which of the following BEST describes tolerance, a form of physical drug dependence?

1. (A)A severe craving for a drug which interferes with a person's ability to function normally
2. (B)Characterized by the continued desire for a drug, even after physical dependence is gone
3. (C)Develops in persons who have used large quantities of substances such as alcohol and barbiturates
4. (D)Occurs when the body becomes accustomed to a drug and requires ever-increasing amounts to achieve the same effect