2026/2027
NR 565 Final Exam Advanced
Pharmacology Fundamentals Study
Guide and Comprehensive Test
Bank Review 2026/2027 –
Chamberlain College Exam
Preparation
Question 1:
A 3-day-old infant is noted to have mild jaundice with elevated unconjugated
bilirubin. Which condition is most likely responsible?
A. Pathologic jaundice
B. Kernicterus
C. Physiologic jaundice
D. G6PD deficiency
Correct Answer: C. Physiologic jaundice
Rationale: Physiologic jaundice commonly appears after 24–72 hours of life due to
immature hepatic conjugation of bilirubin in newborns. It is benign and self-limiting.
Kernicterus is a complication of severe untreated hyperbilirubinemia causing
neurologic damage. G6PD deficiency causes hemolysis leading to pathologic jaundice,
which appears earlier and is more severe. Pathologic jaundice typically presents
within the first 24 hours or is excessively high or prolonged.
Question 2:
Which cell organelle is responsible for autodigestion when released during cellular
injury?
A. Ribosomes
B. Lysosomes
C. Golgi apparatus
D. Smooth endoplasmic reticulum
Correct Answer: B. Lysosomes
Rationale: Lysosomes contain hydrolytic enzymes that digest cellular components.
When released during injury, they can cause autodigestion of the cell. Ribosomes
,2026/2027
synthesize proteins, the Golgi apparatus modifies and packages proteins, and the
smooth ER is involved in lipid synthesis and detoxification.
Question 3:
Which organelle produces hydrogen peroxide (H₂O₂) through oxidative reactions?
A. Lysosomes
B. Ribosomes
C. Peroxisomes
D. Mitochondria
Correct Answer: C. Peroxisomes
Rationale: Peroxisomes carry out oxidative reactions that produce hydrogen peroxide
and then break it down using catalase. Lysosomes digest waste, ribosomes synthesize
proteins, and mitochondria generate ATP through oxidative phosphorylation.
Question 4:
A key difference between eukaryotic and prokaryotic cells is that eukaryotes:
A. Are smaller in size
B. Lack a nuclear membrane
C. Contain membrane-bound organelles
D. Have simpler genetic material
Correct Answer: C. Contain membrane-bound organelles
Rationale: Eukaryotic cells are more complex and contain organelles such as
mitochondria, nucleus, and ER. Prokaryotes lack these structures and are simpler.
Eukaryotes are generally larger and possess a nuclear membrane.
Question 5:
What is a major consequence of calcium influx into injured mitochondria?
A. Increased ATP production
B. Halted ATP synthesis
C. Increased DNA replication
D. Enhanced protein synthesis
Correct Answer: B. Halted ATP synthesis
,2026/2027
Rationale: Excess intracellular calcium disrupts mitochondrial function and inhibits
ATP production, leading to cellular energy failure. This contributes to irreversible cell
injury.
Question 6:
Which function is performed by the Golgi apparatus?
A. ATP production
B. Protein synthesis
C. Packaging proteins for secretion
D. DNA replication
Correct Answer: C. Packaging proteins for secretion
Rationale: The Golgi apparatus modifies, sorts, and packages proteins for secretion.
Ribosomes synthesize proteins, mitochondria produce ATP, and DNA replication
occurs in the nucleus.
Question 7:
Which statement best describes apoptosis?
A. Random uncontrolled cell death
B. Programmed cell death of individual cells
C. Swelling and rupture of cells
D. Infectious destruction of tissues
Correct Answer: B. Programmed cell death of individual cells
Rationale: Apoptosis is a controlled, genetically programmed process of cell death
important in normal tissue turnover. Necrosis involves uncontrolled cell death with
inflammation.
Question 8:
In hypoxic cell injury, sodium and water enter the cell primarily because:
A. Oxygen binds sodium extracellularly
B. Increased osmotic pressure pulls sodium inward
C. Sodium-potassium pump failure due to ATP depletion
D. Potassium actively enters the cell
Correct Answer: C. Sodium-potassium pump failure due to ATP depletion
, 2026/2027
Rationale: ATP depletion impairs the Na⁺/K⁺ pump, causing sodium accumulation
inside the cell. Water follows sodium osmotically, leading to cellular swelling.
Question 9:
Which condition explains increased dehydration risk in obesity?
A. Increased urine output
B. High metabolic rate
C. Low water content in adipose tissue
D. Excess hypothalamic thirst response
Correct Answer: C. Low water content in adipose tissue
Rationale: Fat tissue contains little water, so obese individuals have lower total body
water percentage, increasing dehydration risk.
Question 10:
Which genetic mechanism explains why identical twins may differ in asthma
expression?
A. Nondisjunction
B. Epigenetic modification
C. Chromosomal deletion
D. Point mutation
Correct Answer: B. Epigenetic modification
Rationale: Epigenetics alters gene expression without changing DNA sequence.
Environmental factors can activate or silence genes differently in identical twins.
Question 11:
Transcription is defined as:
A. DNA synthesis from RNA
B. RNA synthesis from DNA template
C. Protein synthesis from RNA
D. Mutation of DNA sequences
Correct Answer: B. RNA synthesis from DNA template
Rationale: Transcription occurs in the nucleus where RNA is synthesized from DNA.
Translation follows in protein synthesis.
NR 565 Final Exam Advanced
Pharmacology Fundamentals Study
Guide and Comprehensive Test
Bank Review 2026/2027 –
Chamberlain College Exam
Preparation
Question 1:
A 3-day-old infant is noted to have mild jaundice with elevated unconjugated
bilirubin. Which condition is most likely responsible?
A. Pathologic jaundice
B. Kernicterus
C. Physiologic jaundice
D. G6PD deficiency
Correct Answer: C. Physiologic jaundice
Rationale: Physiologic jaundice commonly appears after 24–72 hours of life due to
immature hepatic conjugation of bilirubin in newborns. It is benign and self-limiting.
Kernicterus is a complication of severe untreated hyperbilirubinemia causing
neurologic damage. G6PD deficiency causes hemolysis leading to pathologic jaundice,
which appears earlier and is more severe. Pathologic jaundice typically presents
within the first 24 hours or is excessively high or prolonged.
Question 2:
Which cell organelle is responsible for autodigestion when released during cellular
injury?
A. Ribosomes
B. Lysosomes
C. Golgi apparatus
D. Smooth endoplasmic reticulum
Correct Answer: B. Lysosomes
Rationale: Lysosomes contain hydrolytic enzymes that digest cellular components.
When released during injury, they can cause autodigestion of the cell. Ribosomes
,2026/2027
synthesize proteins, the Golgi apparatus modifies and packages proteins, and the
smooth ER is involved in lipid synthesis and detoxification.
Question 3:
Which organelle produces hydrogen peroxide (H₂O₂) through oxidative reactions?
A. Lysosomes
B. Ribosomes
C. Peroxisomes
D. Mitochondria
Correct Answer: C. Peroxisomes
Rationale: Peroxisomes carry out oxidative reactions that produce hydrogen peroxide
and then break it down using catalase. Lysosomes digest waste, ribosomes synthesize
proteins, and mitochondria generate ATP through oxidative phosphorylation.
Question 4:
A key difference between eukaryotic and prokaryotic cells is that eukaryotes:
A. Are smaller in size
B. Lack a nuclear membrane
C. Contain membrane-bound organelles
D. Have simpler genetic material
Correct Answer: C. Contain membrane-bound organelles
Rationale: Eukaryotic cells are more complex and contain organelles such as
mitochondria, nucleus, and ER. Prokaryotes lack these structures and are simpler.
Eukaryotes are generally larger and possess a nuclear membrane.
Question 5:
What is a major consequence of calcium influx into injured mitochondria?
A. Increased ATP production
B. Halted ATP synthesis
C. Increased DNA replication
D. Enhanced protein synthesis
Correct Answer: B. Halted ATP synthesis
,2026/2027
Rationale: Excess intracellular calcium disrupts mitochondrial function and inhibits
ATP production, leading to cellular energy failure. This contributes to irreversible cell
injury.
Question 6:
Which function is performed by the Golgi apparatus?
A. ATP production
B. Protein synthesis
C. Packaging proteins for secretion
D. DNA replication
Correct Answer: C. Packaging proteins for secretion
Rationale: The Golgi apparatus modifies, sorts, and packages proteins for secretion.
Ribosomes synthesize proteins, mitochondria produce ATP, and DNA replication
occurs in the nucleus.
Question 7:
Which statement best describes apoptosis?
A. Random uncontrolled cell death
B. Programmed cell death of individual cells
C. Swelling and rupture of cells
D. Infectious destruction of tissues
Correct Answer: B. Programmed cell death of individual cells
Rationale: Apoptosis is a controlled, genetically programmed process of cell death
important in normal tissue turnover. Necrosis involves uncontrolled cell death with
inflammation.
Question 8:
In hypoxic cell injury, sodium and water enter the cell primarily because:
A. Oxygen binds sodium extracellularly
B. Increased osmotic pressure pulls sodium inward
C. Sodium-potassium pump failure due to ATP depletion
D. Potassium actively enters the cell
Correct Answer: C. Sodium-potassium pump failure due to ATP depletion
, 2026/2027
Rationale: ATP depletion impairs the Na⁺/K⁺ pump, causing sodium accumulation
inside the cell. Water follows sodium osmotically, leading to cellular swelling.
Question 9:
Which condition explains increased dehydration risk in obesity?
A. Increased urine output
B. High metabolic rate
C. Low water content in adipose tissue
D. Excess hypothalamic thirst response
Correct Answer: C. Low water content in adipose tissue
Rationale: Fat tissue contains little water, so obese individuals have lower total body
water percentage, increasing dehydration risk.
Question 10:
Which genetic mechanism explains why identical twins may differ in asthma
expression?
A. Nondisjunction
B. Epigenetic modification
C. Chromosomal deletion
D. Point mutation
Correct Answer: B. Epigenetic modification
Rationale: Epigenetics alters gene expression without changing DNA sequence.
Environmental factors can activate or silence genes differently in identical twins.
Question 11:
Transcription is defined as:
A. DNA synthesis from RNA
B. RNA synthesis from DNA template
C. Protein synthesis from RNA
D. Mutation of DNA sequences
Correct Answer: B. RNA synthesis from DNA template
Rationale: Transcription occurs in the nucleus where RNA is synthesized from DNA.
Translation follows in protein synthesis.
