2026/2027
Wilkes University NSG 530
Advanced Pathophysiology Ultimate
Exam Prep Guide: Extensive
Practice Tests, Complete Test Bank,
and Detailed Study Review
1. A 3-day-old newborn presents with mild jaundice and elevated unconjugated
bilirubin levels but is otherwise well. Which condition is the most likely
diagnosis?
A. Pathologic jaundice
B. Physiologic jaundice
C. Kernicterus
D. G6PD deficiency
Correct Answer: B. Physiologic jaundice
Rationale: Physiologic jaundice typically appears after 24 hours of life, peaks around day
3–5, and is characterized by mild unconjugated hyperbilirubinemia in an otherwise healthy
infant.
2. Which organelle is responsible for cellular autodigestion when released
during cell injury?
A. Ribosomes
B. Lysosomes
C. Golgi apparatus
D. Smooth endoplasmic reticulum
Correct Answer: B. Lysosomes
Rationale: Lysosomes contain hydrolytic enzymes capable of digesting cellular
components. When released during cell injury, they cause autodigestion of the cell.
3. Which organelle produces hydrogen peroxide through oxidative reactions to
detoxify harmful substances?
A. Lysosomes
B. Ribosomes
C. Peroxisomes
D. Mitochondria
, 2026/2027
Correct Answer: C. Peroxisomes
Rationale: Peroxisomes contain enzymes such as oxidases and catalase that generate
and break down hydrogen peroxide during detoxification processes.
4. A key difference between eukaryotic and prokaryotic cells is that eukaryotic
cells:
A. Are smaller in size
B. Lack a nuclear membrane
C. Contain membrane-bound organelles
D. Have no cytoplasm
Correct Answer: C. Contain membrane-bound organelles
Rationale: Eukaryotic cells are characterized by membrane-bound organelles such as
mitochondria, endoplasmic reticulum, and a defined nucleus.
5. During hypoxic injury, sodium and water enter the cell primarily because:
A. Increased oxygen binds sodium outside the cell
B. Calcium inhibits membrane transport
C. Failure of the sodium-potassium pump due to low ATP
D. Chloride actively transports sodium inward
Correct Answer: C. Failure of the sodium-potassium pump due to low ATP
Rationale: Hypoxia decreases ATP production, impairing the sodium-potassium pump
and causing sodium and water influx into the cell.
6. Which function best describes the Golgi apparatus?
A. ATP production
B. Protein synthesis
C. Packaging and secretion of proteins
D. DNA replication
Correct Answer: C. Packaging and secretion of proteins
Rationale: The Golgi apparatus modifies, sorts, and packages proteins for secretion or
delivery to other organelles.
7. Apoptosis is best defined as:
A. Uncontrolled cell death
B. Programmed cell death of scattered single cells
C. Cellular swelling and rupture
D. Infectious cell destruction
, 2026/2027
Correct Answer: B. Programmed cell death of scattered single cells
Rationale: Apoptosis is a regulated process of programmed cell death that eliminates
individual cells without inflammation.
8. In hypoxic cell injury, intracellular swelling occurs primarily due to:
A. Increased potassium influx
B. Increased sodium and water influx
C. Increased calcium efflux
D. Decreased glucose transport
Correct Answer: B. Increased sodium and water influx
Rationale: ATP depletion impairs ion pumps, causing sodium accumulation inside the
cell, and water follows osmotically.
9. Which organelle is the primary site of protein synthesis?
A. Lysosomes
B. Rough endoplasmic reticulum
C. Golgi apparatus
D. Mitochondria
Correct Answer: B. Rough endoplasmic reticulum
Rationale: The rough endoplasmic reticulum is studded with ribosomes and is responsible
for protein synthesis.
10. Obese individuals are more prone to dehydration because:
A. Fat tissue contains little water
B. They produce excess urine
C. Their kidneys conserve too much water
D. They have increased thirst sensation
Correct Answer: A. Fat tissue contains little water
Rationale: Adipose tissue contains relatively little water compared to lean tissue.
11. Which genetic mechanism best explains why only one identical twin
develops asthma?
A. Nondisjunction
B. Epigenetic modification
C. Autosomal dominance
D. Gene deletion
Wilkes University NSG 530
Advanced Pathophysiology Ultimate
Exam Prep Guide: Extensive
Practice Tests, Complete Test Bank,
and Detailed Study Review
1. A 3-day-old newborn presents with mild jaundice and elevated unconjugated
bilirubin levels but is otherwise well. Which condition is the most likely
diagnosis?
A. Pathologic jaundice
B. Physiologic jaundice
C. Kernicterus
D. G6PD deficiency
Correct Answer: B. Physiologic jaundice
Rationale: Physiologic jaundice typically appears after 24 hours of life, peaks around day
3–5, and is characterized by mild unconjugated hyperbilirubinemia in an otherwise healthy
infant.
2. Which organelle is responsible for cellular autodigestion when released
during cell injury?
A. Ribosomes
B. Lysosomes
C. Golgi apparatus
D. Smooth endoplasmic reticulum
Correct Answer: B. Lysosomes
Rationale: Lysosomes contain hydrolytic enzymes capable of digesting cellular
components. When released during cell injury, they cause autodigestion of the cell.
3. Which organelle produces hydrogen peroxide through oxidative reactions to
detoxify harmful substances?
A. Lysosomes
B. Ribosomes
C. Peroxisomes
D. Mitochondria
, 2026/2027
Correct Answer: C. Peroxisomes
Rationale: Peroxisomes contain enzymes such as oxidases and catalase that generate
and break down hydrogen peroxide during detoxification processes.
4. A key difference between eukaryotic and prokaryotic cells is that eukaryotic
cells:
A. Are smaller in size
B. Lack a nuclear membrane
C. Contain membrane-bound organelles
D. Have no cytoplasm
Correct Answer: C. Contain membrane-bound organelles
Rationale: Eukaryotic cells are characterized by membrane-bound organelles such as
mitochondria, endoplasmic reticulum, and a defined nucleus.
5. During hypoxic injury, sodium and water enter the cell primarily because:
A. Increased oxygen binds sodium outside the cell
B. Calcium inhibits membrane transport
C. Failure of the sodium-potassium pump due to low ATP
D. Chloride actively transports sodium inward
Correct Answer: C. Failure of the sodium-potassium pump due to low ATP
Rationale: Hypoxia decreases ATP production, impairing the sodium-potassium pump
and causing sodium and water influx into the cell.
6. Which function best describes the Golgi apparatus?
A. ATP production
B. Protein synthesis
C. Packaging and secretion of proteins
D. DNA replication
Correct Answer: C. Packaging and secretion of proteins
Rationale: The Golgi apparatus modifies, sorts, and packages proteins for secretion or
delivery to other organelles.
7. Apoptosis is best defined as:
A. Uncontrolled cell death
B. Programmed cell death of scattered single cells
C. Cellular swelling and rupture
D. Infectious cell destruction
, 2026/2027
Correct Answer: B. Programmed cell death of scattered single cells
Rationale: Apoptosis is a regulated process of programmed cell death that eliminates
individual cells without inflammation.
8. In hypoxic cell injury, intracellular swelling occurs primarily due to:
A. Increased potassium influx
B. Increased sodium and water influx
C. Increased calcium efflux
D. Decreased glucose transport
Correct Answer: B. Increased sodium and water influx
Rationale: ATP depletion impairs ion pumps, causing sodium accumulation inside the
cell, and water follows osmotically.
9. Which organelle is the primary site of protein synthesis?
A. Lysosomes
B. Rough endoplasmic reticulum
C. Golgi apparatus
D. Mitochondria
Correct Answer: B. Rough endoplasmic reticulum
Rationale: The rough endoplasmic reticulum is studded with ribosomes and is responsible
for protein synthesis.
10. Obese individuals are more prone to dehydration because:
A. Fat tissue contains little water
B. They produce excess urine
C. Their kidneys conserve too much water
D. They have increased thirst sensation
Correct Answer: A. Fat tissue contains little water
Rationale: Adipose tissue contains relatively little water compared to lean tissue.
11. Which genetic mechanism best explains why only one identical twin
develops asthma?
A. Nondisjunction
B. Epigenetic modification
C. Autosomal dominance
D. Gene deletion
