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NURS 300 Pathophysiology for Nursing Practice
Comprehensive Practice Exam Questions with
Verified Answers and Detailed Rationales 2026–
2027 | Pathophysiology Nursing Exam Prep |
Graded A+
Description:
This comprehensive examination is designed to assess mastery of
pathophysiology concepts as presented in the textbook
"Pathophysiology: The Biologic Basis for Disease in Adults and
Children" by Kathryn L. McCance and Sue E. Huether. The exam covers
the full scope of the curriculum, including cellular biology, genetics,
fluid and electrolyte balance, and disorders across all body systems. It
features 150 multiple-choice questions that test recall, clinical
application, and critical reasoning through scenario-based problems,
mirroring the format of nursing program and NCLEX examinations.
Exam Title: Pathophysiology: The Biologic Basis for Disease in Adults
and Children Comprehensive Examination
Section 1: Questions 1 – 50
1. Which statement best describes the cellular function of metabolic
absorption?
A) Cells can produce proteins.
,2 | Page
B) Cells can secrete digestive enzymes.
C) Cells can take in and use nutrients.
D) Cells can synthesize fats.
Correct Answer: C) Cells can take in and use nutrients.
Rationale: In metabolic absorption, all cells take in and use nutrients and
other substances from their surroundings. This is a fundamental cellular
function that enables cells to acquire the raw materials needed for
metabolism and growth. The other options describe specific secretory or
synthetic functions that are not inclusive of the broad concept of
metabolic absorption.
2. Where is most of a cell's genetic information, including RNA and
DNA, contained?
A) Mitochondria
B) Ribosome
C) Nucleolus
D) Lysosome
Correct Answer: C) Nucleolus
Rationale: The nucleus contains the nucleolus, a small dense structure
composed largely of RNA, most of the cellular DNA, and the DNA-
binding proteins (such as histones) that regulate its activity. The
mitochondria are responsible for cellular respiration and energy
production, ribosomes provide sites for protein synthesis, and lysosomes
function as the intracellular digestive system.
,3 | Page
3. Which component of the cell produces hydrogen peroxide (H2O2) by
using oxygen to remove hydrogen atoms from specific substrates in an
oxidative reaction?
A) Lysosomes
B) Peroxisomes
C) Ribosomes
D) Endosome
Correct Answer: B) Peroxisomes
Rationale: Peroxisomes are named for their ability to use oxygen to
remove hydrogen atoms from specific substrates, producing hydrogen
peroxide (H2O2) as a byproduct. This oxidative reaction is a key
metabolic function of peroxisomes. Ribosomes synthesize proteins,
lysosomes contain digestive enzymes, and endosomes are vesicles
involved in cellular transport.
4. During which phase of the cell cycle is DNA synthesized?
A) G1 phase
B) S phase
C) G2 phase
D) M phase
Correct Answer: B) S phase
, 4 | Page
Rationale: DNA synthesis occurs during the S (synthesis) phase of the
cell cycle. The four phases are: G1 (gap between mitosis and DNA
synthesis), S (DNA synthesis), G2 (gap after DNA synthesis before
mitosis), and M (mitosis, nuclear and cytoplasmic division). DNA
replication is essential for preparing the cell for division.
5. Which organic compound facilitates transportation across cell
membranes by acting as receptors, transport channels for electrolytes,
and enzymes to drive active pumps?
A) Carbohydrates
B) Lipids
C) Proteins
D) Nucleic acids
Correct Answer: C) Proteins
Rationale: Proteins are the primary functional molecules in the cell
membrane responsible for transport. They act as receptors for signaling
molecules, form channels for ion transport, and function as enzymes in
active transport pumps. Carbohydrates are involved in cell recognition,
lipids form the membrane bilayer, and nucleic acids store genetic
information.
6. Which cAMP-mediated response is related to antidiuretic hormone
(ADH)?
A) Increased heart rate and force of contraction
B) Secretion of cortisol
NURS 300 Pathophysiology for Nursing Practice
Comprehensive Practice Exam Questions with
Verified Answers and Detailed Rationales 2026–
2027 | Pathophysiology Nursing Exam Prep |
Graded A+
Description:
This comprehensive examination is designed to assess mastery of
pathophysiology concepts as presented in the textbook
"Pathophysiology: The Biologic Basis for Disease in Adults and
Children" by Kathryn L. McCance and Sue E. Huether. The exam covers
the full scope of the curriculum, including cellular biology, genetics,
fluid and electrolyte balance, and disorders across all body systems. It
features 150 multiple-choice questions that test recall, clinical
application, and critical reasoning through scenario-based problems,
mirroring the format of nursing program and NCLEX examinations.
Exam Title: Pathophysiology: The Biologic Basis for Disease in Adults
and Children Comprehensive Examination
Section 1: Questions 1 – 50
1. Which statement best describes the cellular function of metabolic
absorption?
A) Cells can produce proteins.
,2 | Page
B) Cells can secrete digestive enzymes.
C) Cells can take in and use nutrients.
D) Cells can synthesize fats.
Correct Answer: C) Cells can take in and use nutrients.
Rationale: In metabolic absorption, all cells take in and use nutrients and
other substances from their surroundings. This is a fundamental cellular
function that enables cells to acquire the raw materials needed for
metabolism and growth. The other options describe specific secretory or
synthetic functions that are not inclusive of the broad concept of
metabolic absorption.
2. Where is most of a cell's genetic information, including RNA and
DNA, contained?
A) Mitochondria
B) Ribosome
C) Nucleolus
D) Lysosome
Correct Answer: C) Nucleolus
Rationale: The nucleus contains the nucleolus, a small dense structure
composed largely of RNA, most of the cellular DNA, and the DNA-
binding proteins (such as histones) that regulate its activity. The
mitochondria are responsible for cellular respiration and energy
production, ribosomes provide sites for protein synthesis, and lysosomes
function as the intracellular digestive system.
,3 | Page
3. Which component of the cell produces hydrogen peroxide (H2O2) by
using oxygen to remove hydrogen atoms from specific substrates in an
oxidative reaction?
A) Lysosomes
B) Peroxisomes
C) Ribosomes
D) Endosome
Correct Answer: B) Peroxisomes
Rationale: Peroxisomes are named for their ability to use oxygen to
remove hydrogen atoms from specific substrates, producing hydrogen
peroxide (H2O2) as a byproduct. This oxidative reaction is a key
metabolic function of peroxisomes. Ribosomes synthesize proteins,
lysosomes contain digestive enzymes, and endosomes are vesicles
involved in cellular transport.
4. During which phase of the cell cycle is DNA synthesized?
A) G1 phase
B) S phase
C) G2 phase
D) M phase
Correct Answer: B) S phase
, 4 | Page
Rationale: DNA synthesis occurs during the S (synthesis) phase of the
cell cycle. The four phases are: G1 (gap between mitosis and DNA
synthesis), S (DNA synthesis), G2 (gap after DNA synthesis before
mitosis), and M (mitosis, nuclear and cytoplasmic division). DNA
replication is essential for preparing the cell for division.
5. Which organic compound facilitates transportation across cell
membranes by acting as receptors, transport channels for electrolytes,
and enzymes to drive active pumps?
A) Carbohydrates
B) Lipids
C) Proteins
D) Nucleic acids
Correct Answer: C) Proteins
Rationale: Proteins are the primary functional molecules in the cell
membrane responsible for transport. They act as receptors for signaling
molecules, form channels for ion transport, and function as enzymes in
active transport pumps. Carbohydrates are involved in cell recognition,
lipids form the membrane bilayer, and nucleic acids store genetic
information.
6. Which cAMP-mediated response is related to antidiuretic hormone
(ADH)?
A) Increased heart rate and force of contraction
B) Secretion of cortisol
