BIOL 331 FINAL EXAM PATHOPHYSIOLOGY
REVIEW 2026 | PORTAGE LEARNING
PRACTICE QUESTIONS, ANSWERED
RATIONALES, DISEASE MECHANISMS, BODY
SYSTEM DISORDERS & EXAM PREPARATION
GUIDE
• This document contains 200 practice questions for BIOL 331 Pathophysiology,
designed to mirror the depth and style of Portage Learning exams — use it by
testing yourself first, then checking the correct answer and EXPERT RATIONALE to
reinforce your understanding.
• Each question includes 5 options (A–E), a highlighted correct answer with EXPERT
RATIONALE, and covers all major body system disorders, disease mechanisms, and
pathophysiological concepts tested on the final exam.
BIOL 331 FINAL EXAM — PATHOPHYSIOLOGY REVIEW 2026 PORTAGE LEARNING
| 200 PRACTICE QUESTIONS
1. Which of the following best describes pathophysiology?
A. The study of normal body function and anatomy
B. The study of microorganisms that cause disease
C. The study of drugs and their effects on the body
D. The study of surgical techniques for treating disease
E. The study of functional changes that accompany disease or injury
CORRECT ANSWER: E. The study of functional changes that accompany
disease or injury
EXPERT RATIONALE: Pathophysiology focuses on the mechanisms by which
disease alters normal physiological function. It bridges basic science and clinical
medicine by explaining how and why signs and symptoms occur.
,2. Which term refers to the cause of a disease?
A. Pathogenesis
B. Etiology
C. Prognosis
D. Epidemiology
E. Diagnosis
CORRECT ANSWER: B. Etiology
EXPERT RATIONALE: Etiology refers to the origin or cause of a disease, whether
infectious, genetic, environmental, or idiopathic. Pathogenesis refers to the
mechanism of disease development.
3. A patient has a fever of 39.5°C. Which of the following mediators is
primarily responsible for resetting the hypothalamic set point?
A. Histamine
B. Bradykinin
C. Prostaglandin E2 (PGE2)
D. Serotonin
E. Leukotriene B4
CORRECT ANSWER: C. Prostaglandin E2 (PGE2)
EXPERT RATIONALE: PGE2 is the key mediator that acts on the hypothalamus
to raise the thermal set point during fever. NSAIDs reduce fever by inhibiting
cyclooxygenase (COX) enzymes, thereby reducing PGE2 synthesis.
4. Which type of cell death is characterized by cell swelling, membrane
rupture, and inflammation?
A. Apoptosis
,B. Autophagy
C. Pyroptosis
D. Necrosis
E. Anoikis
CORRECT ANSWER: D. Necrosis
EXPERT RATIONALE: Necrosis is uncontrolled cell death involving cellular
swelling, membrane disruption, and release of intracellular contents that trigger an
inflammatory response. Apoptosis, by contrast, is programmed and non-
inflammatory.
5. Which of the following is a hallmark of apoptosis?
A. Cellular swelling
B. Release of lysosomal enzymes
C. DNA fragmentation into nucleosomal units
D. Massive inflammatory response
E. Loss of membrane integrity early in the process
CORRECT ANSWER: C. DNA fragmentation into nucleosomal units
EXPERT RATIONALE: Apoptosis is characterized by orderly DNA fragmentation,
cell shrinkage, chromatin condensation, and formation of apoptotic bodies — all
without triggering inflammation, unlike necrosis.
6. Which of the following best describes a sign of disease?
A. Pain reported by the patient
B. Nausea experienced by the patient
C. Fatigue described in the history
, D. Elevated blood pressure measured by a clinician
E. Dizziness reported during the exam
CORRECT ANSWER: D. Elevated blood pressure measured by a clinician
EXPERT RATIONALE: Signs are objective, measurable findings observed by a
clinician. Symptoms are subjective experiences reported by the patient, such as
pain, nausea, or dizziness.
7. Which of the following white blood cells is the FIRST to arrive at a site of
acute inflammation?
A. Lymphocytes
B. Monocytes
C. Eosinophils
D. Neutrophils
E. Basophils
CORRECT ANSWER: D. Neutrophils
EXPERT RATIONALE: Neutrophils are the first responders in acute
inflammation, arriving within minutes to hours. They phagocytose pathogens and
release enzymes to destroy invaders. Monocytes arrive later and differentiate into
macrophages.
8. Chronic granulomatous inflammation is most associated with which of the
following organisms?
A. Staphylococcus aureus
B. Escherichia coli
C. Mycobacterium tuberculosis
D. Streptococcus pneumoniae
REVIEW 2026 | PORTAGE LEARNING
PRACTICE QUESTIONS, ANSWERED
RATIONALES, DISEASE MECHANISMS, BODY
SYSTEM DISORDERS & EXAM PREPARATION
GUIDE
• This document contains 200 practice questions for BIOL 331 Pathophysiology,
designed to mirror the depth and style of Portage Learning exams — use it by
testing yourself first, then checking the correct answer and EXPERT RATIONALE to
reinforce your understanding.
• Each question includes 5 options (A–E), a highlighted correct answer with EXPERT
RATIONALE, and covers all major body system disorders, disease mechanisms, and
pathophysiological concepts tested on the final exam.
BIOL 331 FINAL EXAM — PATHOPHYSIOLOGY REVIEW 2026 PORTAGE LEARNING
| 200 PRACTICE QUESTIONS
1. Which of the following best describes pathophysiology?
A. The study of normal body function and anatomy
B. The study of microorganisms that cause disease
C. The study of drugs and their effects on the body
D. The study of surgical techniques for treating disease
E. The study of functional changes that accompany disease or injury
CORRECT ANSWER: E. The study of functional changes that accompany
disease or injury
EXPERT RATIONALE: Pathophysiology focuses on the mechanisms by which
disease alters normal physiological function. It bridges basic science and clinical
medicine by explaining how and why signs and symptoms occur.
,2. Which term refers to the cause of a disease?
A. Pathogenesis
B. Etiology
C. Prognosis
D. Epidemiology
E. Diagnosis
CORRECT ANSWER: B. Etiology
EXPERT RATIONALE: Etiology refers to the origin or cause of a disease, whether
infectious, genetic, environmental, or idiopathic. Pathogenesis refers to the
mechanism of disease development.
3. A patient has a fever of 39.5°C. Which of the following mediators is
primarily responsible for resetting the hypothalamic set point?
A. Histamine
B. Bradykinin
C. Prostaglandin E2 (PGE2)
D. Serotonin
E. Leukotriene B4
CORRECT ANSWER: C. Prostaglandin E2 (PGE2)
EXPERT RATIONALE: PGE2 is the key mediator that acts on the hypothalamus
to raise the thermal set point during fever. NSAIDs reduce fever by inhibiting
cyclooxygenase (COX) enzymes, thereby reducing PGE2 synthesis.
4. Which type of cell death is characterized by cell swelling, membrane
rupture, and inflammation?
A. Apoptosis
,B. Autophagy
C. Pyroptosis
D. Necrosis
E. Anoikis
CORRECT ANSWER: D. Necrosis
EXPERT RATIONALE: Necrosis is uncontrolled cell death involving cellular
swelling, membrane disruption, and release of intracellular contents that trigger an
inflammatory response. Apoptosis, by contrast, is programmed and non-
inflammatory.
5. Which of the following is a hallmark of apoptosis?
A. Cellular swelling
B. Release of lysosomal enzymes
C. DNA fragmentation into nucleosomal units
D. Massive inflammatory response
E. Loss of membrane integrity early in the process
CORRECT ANSWER: C. DNA fragmentation into nucleosomal units
EXPERT RATIONALE: Apoptosis is characterized by orderly DNA fragmentation,
cell shrinkage, chromatin condensation, and formation of apoptotic bodies — all
without triggering inflammation, unlike necrosis.
6. Which of the following best describes a sign of disease?
A. Pain reported by the patient
B. Nausea experienced by the patient
C. Fatigue described in the history
, D. Elevated blood pressure measured by a clinician
E. Dizziness reported during the exam
CORRECT ANSWER: D. Elevated blood pressure measured by a clinician
EXPERT RATIONALE: Signs are objective, measurable findings observed by a
clinician. Symptoms are subjective experiences reported by the patient, such as
pain, nausea, or dizziness.
7. Which of the following white blood cells is the FIRST to arrive at a site of
acute inflammation?
A. Lymphocytes
B. Monocytes
C. Eosinophils
D. Neutrophils
E. Basophils
CORRECT ANSWER: D. Neutrophils
EXPERT RATIONALE: Neutrophils are the first responders in acute
inflammation, arriving within minutes to hours. They phagocytose pathogens and
release enzymes to destroy invaders. Monocytes arrive later and differentiate into
macrophages.
8. Chronic granulomatous inflammation is most associated with which of the
following organisms?
A. Staphylococcus aureus
B. Escherichia coli
C. Mycobacterium tuberculosis
D. Streptococcus pneumoniae
