SOLUTIONS TO EXERCISES, LESSON 3
1. b A substance used to prevent, diagnose, or treat disease or to prevent
4. b To relieve the symptoms of a disease or condition. (para 3-4c)
The weak patient may require smaller doses of a drug to achieve an effect.
6. b Drug dependence is said to occur when the patient has either a physiological or
7. b Synergism occurs when the combined effect of two drugs is greater than the
In this route of administration the drug is absorbed without passing through the
10. b Since body membranes are lipid in nature, a drug that will pass through lipid
material will be absorbed much more quickly than ionized drug particles.
11. b The metabolic process of changing a drug. (para 3-11)
The process of eliminating a drug or its metabolites from the body.
13. b A drug (the key) combines with a receptor-site (the lock) to produce a
Passive transport occurs when molecules of a drug move from an area of high
concentration to an area of low concentration, while active transport occurs
when a "carrier molecule" carries a drug molecule across a cell membrane.