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UPDATED 2026/2027 (GRADED A+)-
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BIOD 351/ BIOD351 MODULE 1 PHARMACOLOGY
BIOD 351 Module 1 Pharmacology – Questions 1–10
Question 1: Tablets that are coated with an acid-resistant substance to prevent
dissolution in the stomach are called:
A) Sustained-release
B) Enteric-coated
C) Immediate-release
D) Extended-release
Answer: B) Enteric-coated
Rationale: Enteric-coated tablets are designed to pass through the stomach without
dissolving and to release the drug in the intestine. This prevents stomach irritation and
protects drugs that are unstable in acidic environments.
Question 2: Suppositories are designed to:
A) Dissolve in the stomach
B) Melt at body temperature
C) Release the drug over 24 hours
D) Be chewed before swallowing
Answer: B) Melt at body temperature
Rationale: Suppositories are solid dosage forms that melt or dissolve at body
temperature to release the active drug. This allows absorption through rectal or
vaginal mucosa, bypassing the gastrointestinal tract.
,Question 3: Parenteral administration generally has a:
A) Slower onset of action than oral
B) Similar onset as oral
C) Faster onset of action than oral
D) No effect
Answer: C) Faster onset of action than oral
Rationale: Parenteral administration (e.g., IV, IM, subcutaneous) delivers drugs
directly into the bloodstream or tissues, bypassing the digestive system. This results in
faster absorption and quicker therapeutic effects compared to oral routes.
Question 4: The study of how various dosage forms influence the way in which drugs
affect the body is called:
A) Pharmacodynamics
B) Pharmaceutics
C) Pharmacokinetics
D) Toxicology
Answer: B) Pharmaceutics
Rationale: Pharmaceutics focuses on how drug formulation, dosage form, and route
of administration influence drug absorption, distribution, metabolism, and therapeutic
effect. It bridges the gap between a drug’s chemical properties and its clinical use.
Question 5: Pharmacokinetics can also be thought of as:
A) What the drug does to the body
B) What the body does to the drug
C) How the drug is metabolized by the liver only
D) How the drug is excreted in urine only
Answer: B) What the body does to the drug
Rationale: Pharmacokinetics studies the absorption, distribution, metabolism, and
excretion (ADME) of drugs. It describes how the body handles a drug, affecting its
concentration and duration of action.
Question 6: Pharmacodynamics is the study of:
A) How the body handles a drug
B) How various dosage forms influence absorption
C) What the drug does to the body
D) Drug toxicology
, Answer: C) What the drug does to the body
Rationale: Pharmacodynamics examines the biochemical and physiological effects of
drugs and their mechanisms of action. It determines how drugs produce therapeutic or
adverse effects in the body.
Question 7: How many components make up the pharmacokinetic phase of drug
activity?
A) 2
B) 3
C) 4
D) 5
Answer: C) 4
Rationale: The pharmacokinetic phase consists of four components: absorption,
distribution, metabolism (biotransformation), and excretion (ADME). Understanding
these steps helps predict drug concentrations and dosing schedules.
Question 8: The process by which a drug passes from the site of administration into
the bloodstream is called:
A) Distribution
B) Absorption
C) Metabolism
D) Excretion
Answer: B) Absorption
Rationale: Absorption refers to the movement of a drug from its site of administration
into systemic circulation. Factors such as solubility, route, and dosage form influence
the rate and extent of absorption.
Question 9: The movement of a drug through body fluids and tissues to its site of
action is called:
A) Absorption
B) Distribution
C) Metabolism
D) Elimination
Answer: B) Distribution
Rationale: Distribution describes how a drug travels through the bloodstream and
body compartments to reach its target site. Factors like blood flow, protein binding,
and tissue permeability affect distribution.