WGU D027 – Advanced Pathopharmacological Foundations
(Western Governors University) | Quiz Bank 2025/2026 –
Verified Topic-Based Questions, 100% Correct Answers &
Faculty-Approved Explanations | Grade A
WGU D027 Course Competencies:
• Cellular Function & Adaptation
• Inflammation, Immunity & Infection
• Genetics & Disease
• Cardiovascular System
• Respiratory System
• Neurological System
• Endocrine System
• Renal & Urinary System
• Gastrointestinal System
• Musculoskeletal System
• Reproductive System
• Hematologic System
• Oncologic Disorders
• Pharmacological Principles
Section 1: Cellular Function & Adaptation (Q1–Q10)
Q1. Which cellular adaptation involves an increase in cell size?
A. Hyperplasia
,B. Hypertrophy
C. Atrophy
D. Metaplasia
Answer: B
Rationale: Hypertrophy is an increase in cell size (e.g., cardiac muscle in
hypertension). Hyperplasia is an increase in cell number; atrophy is
shrinkage; metaplasia is replacement of one cell type with another.
Q2. Which cellular adaptation involves a decrease in cell size?
A. Hypertrophy
B. Hyperplasia
C. Atrophy
D. Dysplasia
Answer: C
Rationale: Atrophy is a decrease in cell size due to disuse, denervation, or
inadequate nutrition.
Q3. Which cellular adaptation is a precursor to cancer?
A. Hypertrophy
B. Hyperplasia
C. Dysplasia
D. Metaplasia
Answer: C
Rationale: Dysplasia involves disordered cell growth and is a precursor to
malignancy. Metaplasia is reversible replacement.
Q4. What type of cell death is programmed and energy-dependent?
A. Necrosis
B. Apoptosis
C. Autolysis
D. Coagulation
,Answer: B
Rationale: Apoptosis is programmed cell death that is energy-dependent
and does not cause inflammation. Necrosis is unregulated and causes
inflammation.
Q5. Which type of necrosis occurs in the brain?
A. Coagulative
B. Liquefactive
C. Caseous
D. Fat
Answer: B
Rationale: Liquefactive necrosis occurs in the brain due to enzymatic
digestion. Coagulative occurs in heart/kidney; caseous in TB; fat in
pancreatitis.
Q6. What is the primary energy source for cells?
A. Glucose
B. ATP
C. Protein
D. Fat
Answer: B
Rationale: ATP (adenosine triphosphate) is the primary energy currency of
the cell, produced through cellular respiration.
Q7. Which organelle is responsible for protein synthesis?
A. Mitochondria
B. Ribosome
C. Lysosome
D. Golgi apparatus
, Answer: B
Rationale: Ribosomes synthesize proteins. Mitochondria produce ATP;
lysosomes digest; Golgi packages.
Q8. What is the role of the sodium-potassium pump?
A. To maintain resting membrane potential
B. To produce ATP
C. To synthesize proteins
D. To digest waste
Answer: A
Rationale: The Na+/K+ ATPase pump maintains resting membrane
potential by pumping 3 Na+ out and 2 K+ in per ATP.
Q9. Which type of cell adaptation is reversible?
A. Dysplasia
B. Neoplasia
C. Metaplasia
D. Anaplasia
Answer: C
Rationale: Metaplasia is reversible replacement of one mature cell type
with another. Dysplasia may progress to neoplasia; anaplasia is malignant.
Q10. What is the primary cause of cellular injury?
A. ATP depletion
B. Increased oxygen
C. Increased nutrients
D. Decreased pH
Answer: A
Rationale: ATP depletion is a primary cause of cellular injury, leading to
failure of membrane pumps and cell death.
(Western Governors University) | Quiz Bank 2025/2026 –
Verified Topic-Based Questions, 100% Correct Answers &
Faculty-Approved Explanations | Grade A
WGU D027 Course Competencies:
• Cellular Function & Adaptation
• Inflammation, Immunity & Infection
• Genetics & Disease
• Cardiovascular System
• Respiratory System
• Neurological System
• Endocrine System
• Renal & Urinary System
• Gastrointestinal System
• Musculoskeletal System
• Reproductive System
• Hematologic System
• Oncologic Disorders
• Pharmacological Principles
Section 1: Cellular Function & Adaptation (Q1–Q10)
Q1. Which cellular adaptation involves an increase in cell size?
A. Hyperplasia
,B. Hypertrophy
C. Atrophy
D. Metaplasia
Answer: B
Rationale: Hypertrophy is an increase in cell size (e.g., cardiac muscle in
hypertension). Hyperplasia is an increase in cell number; atrophy is
shrinkage; metaplasia is replacement of one cell type with another.
Q2. Which cellular adaptation involves a decrease in cell size?
A. Hypertrophy
B. Hyperplasia
C. Atrophy
D. Dysplasia
Answer: C
Rationale: Atrophy is a decrease in cell size due to disuse, denervation, or
inadequate nutrition.
Q3. Which cellular adaptation is a precursor to cancer?
A. Hypertrophy
B. Hyperplasia
C. Dysplasia
D. Metaplasia
Answer: C
Rationale: Dysplasia involves disordered cell growth and is a precursor to
malignancy. Metaplasia is reversible replacement.
Q4. What type of cell death is programmed and energy-dependent?
A. Necrosis
B. Apoptosis
C. Autolysis
D. Coagulation
,Answer: B
Rationale: Apoptosis is programmed cell death that is energy-dependent
and does not cause inflammation. Necrosis is unregulated and causes
inflammation.
Q5. Which type of necrosis occurs in the brain?
A. Coagulative
B. Liquefactive
C. Caseous
D. Fat
Answer: B
Rationale: Liquefactive necrosis occurs in the brain due to enzymatic
digestion. Coagulative occurs in heart/kidney; caseous in TB; fat in
pancreatitis.
Q6. What is the primary energy source for cells?
A. Glucose
B. ATP
C. Protein
D. Fat
Answer: B
Rationale: ATP (adenosine triphosphate) is the primary energy currency of
the cell, produced through cellular respiration.
Q7. Which organelle is responsible for protein synthesis?
A. Mitochondria
B. Ribosome
C. Lysosome
D. Golgi apparatus
, Answer: B
Rationale: Ribosomes synthesize proteins. Mitochondria produce ATP;
lysosomes digest; Golgi packages.
Q8. What is the role of the sodium-potassium pump?
A. To maintain resting membrane potential
B. To produce ATP
C. To synthesize proteins
D. To digest waste
Answer: A
Rationale: The Na+/K+ ATPase pump maintains resting membrane
potential by pumping 3 Na+ out and 2 K+ in per ATP.
Q9. Which type of cell adaptation is reversible?
A. Dysplasia
B. Neoplasia
C. Metaplasia
D. Anaplasia
Answer: C
Rationale: Metaplasia is reversible replacement of one mature cell type
with another. Dysplasia may progress to neoplasia; anaplasia is malignant.
Q10. What is the primary cause of cellular injury?
A. ATP depletion
B. Increased oxygen
C. Increased nutrients
D. Decreased pH
Answer: A
Rationale: ATP depletion is a primary cause of cellular injury, leading to
failure of membrane pumps and cell death.
