TEST BANK: McCANCE & HUETHER’S
PATHOPHYSIOLOGY 9TH EDITION – VERIFIED
QUESTIONS & ANSWERS | COMPLETE EXAM
PREP FOR PATHOPHYSIOLOGY, DISEASE
MECHANISMS & CLINICAL SUCCESS | ISBN 978-
0323789875 | UPDATED BY Julia L. Rogers
• This test bank is based on McCance & Huether's Pathophysiology 9th Edition (ISBN
978-0323789875), updated by Julia L. Rogers — featuring verified exam-style
questions with highlighted correct answers and EXPERT RATIONALE to reinforce
understanding of disease mechanisms and clinical pathophysiology.
• Use this material by reading each question carefully, selecting your answer before
checking the correct option and EXPERT RATIONALE — ideal for spaced repetition,
exam simulation, and deepening conceptual mastery across all body systems.
QUESTION 1
Which of the following best describes the concept of homeostasis?
A. The process by which cells divide and replicate
B. The tendency of the body to maintain a stable internal environment
C. The mechanism by which pathogens invade host cells
D. The process of programmed cell death
E. The movement of ions across a selectively permeable membrane
CORRECT ANSWER: B. The tendency of the body to maintain a stable
internal environment
EXPERT RATIONALE: Homeostasis refers to the dynamic equilibrium maintained by
physiological processes that keep the internal environment of the body within a normal
range. It involves feedback mechanisms that respond to changes in the internal
environment.
QUESTION 2
,What type of feedback mechanism is primarily responsible for maintaining
homeostasis?
A. Positive feedback
B. Feed-forward regulation
C. Negative feedback
D. Hormonal amplification
E. Autocrine signaling
CORRECT ANSWER: C. Negative feedback
EXPERT RATIONALE: Negative feedback mechanisms detect deviations from a set point
and initiate responses that counteract the change, thereby restoring balance. This is the
primary mechanism for homeostatic regulation in the body.
QUESTION 3
Which cellular organelle is primarily responsible for ATP production?
A. Nucleus
B. Golgi apparatus
C. Endoplasmic reticulum
D. Mitochondria
E. Lysosome
CORRECT ANSWER: D. Mitochondria
EXPERT RATIONALE: Mitochondria are the sites of oxidative phosphorylation and the
citric acid cycle, producing the majority of ATP used by the cell for energy-dependent
processes.
QUESTION 4
,The process by which a cell engulfs large particles or microorganisms is called:
A. Pinocytosis
B. Exocytosis
C. Phagocytosis
D. Osmosis
E. Active transport
CORRECT ANSWER: C. Phagocytosis
EXPERT RATIONALE: Phagocytosis is a form of endocytosis in which the cell membrane
surrounds and engulfs large particles, bacteria, or cellular debris. It is a key mechanism
in immune defense.
QUESTION 5
Which of the following is a characteristic of apoptosis?
A. Random cellular necrosis with inflammation
B. Swelling of the cell and organelles
C. Programmed, orderly cell death without inflammation
D. Rupture of the cell membrane
E. Release of lysosomal enzymes into surrounding tissue
CORRECT ANSWER: C. Programmed, orderly cell death without
inflammation
EXPERT RATIONALE: Apoptosis is a regulated process of cell death that occurs without
triggering inflammation. It involves characteristic changes such as cell shrinkage,
chromatin condensation, and formation of apoptotic bodies.
QUESTION 6
, What is the primary function of the sodium-potassium ATPase pump?
A. To move glucose across the cell membrane
B. To maintain electrochemical gradients by pumping Na⁺ out and K⁺ into the cell
C. To facilitate water movement through aquaporins
D. To transport oxygen across the mitochondrial membrane
E. To pump calcium ions into the sarcoplasmic reticulum
CORRECT ANSWER: B. To maintain electrochemical gradients by pumping
Na⁺ out and K⁺ into the cell
EXPERT RATIONALE: The Na⁺/K⁺ ATPase pump actively transports 3 sodium ions out of
the cell and 2 potassium ions into the cell per cycle, maintaining the resting membrane
potential and cellular volume.
QUESTION 7
Which type of cellular adaptation involves an increase in cell size?
A. Hyperplasia
B. Metaplasia
C. Atrophy
D. Hypertrophy
E. Dysplasia
CORRECT ANSWER: D. Hypertrophy
EXPERT RATIONALE: Hypertrophy is an increase in the size of individual cells, resulting
in an increase in the size of the organ. It occurs in response to increased workload, such
as cardiac hypertrophy in hypertension.
QUESTION 8
PATHOPHYSIOLOGY 9TH EDITION – VERIFIED
QUESTIONS & ANSWERS | COMPLETE EXAM
PREP FOR PATHOPHYSIOLOGY, DISEASE
MECHANISMS & CLINICAL SUCCESS | ISBN 978-
0323789875 | UPDATED BY Julia L. Rogers
• This test bank is based on McCance & Huether's Pathophysiology 9th Edition (ISBN
978-0323789875), updated by Julia L. Rogers — featuring verified exam-style
questions with highlighted correct answers and EXPERT RATIONALE to reinforce
understanding of disease mechanisms and clinical pathophysiology.
• Use this material by reading each question carefully, selecting your answer before
checking the correct option and EXPERT RATIONALE — ideal for spaced repetition,
exam simulation, and deepening conceptual mastery across all body systems.
QUESTION 1
Which of the following best describes the concept of homeostasis?
A. The process by which cells divide and replicate
B. The tendency of the body to maintain a stable internal environment
C. The mechanism by which pathogens invade host cells
D. The process of programmed cell death
E. The movement of ions across a selectively permeable membrane
CORRECT ANSWER: B. The tendency of the body to maintain a stable
internal environment
EXPERT RATIONALE: Homeostasis refers to the dynamic equilibrium maintained by
physiological processes that keep the internal environment of the body within a normal
range. It involves feedback mechanisms that respond to changes in the internal
environment.
QUESTION 2
,What type of feedback mechanism is primarily responsible for maintaining
homeostasis?
A. Positive feedback
B. Feed-forward regulation
C. Negative feedback
D. Hormonal amplification
E. Autocrine signaling
CORRECT ANSWER: C. Negative feedback
EXPERT RATIONALE: Negative feedback mechanisms detect deviations from a set point
and initiate responses that counteract the change, thereby restoring balance. This is the
primary mechanism for homeostatic regulation in the body.
QUESTION 3
Which cellular organelle is primarily responsible for ATP production?
A. Nucleus
B. Golgi apparatus
C. Endoplasmic reticulum
D. Mitochondria
E. Lysosome
CORRECT ANSWER: D. Mitochondria
EXPERT RATIONALE: Mitochondria are the sites of oxidative phosphorylation and the
citric acid cycle, producing the majority of ATP used by the cell for energy-dependent
processes.
QUESTION 4
,The process by which a cell engulfs large particles or microorganisms is called:
A. Pinocytosis
B. Exocytosis
C. Phagocytosis
D. Osmosis
E. Active transport
CORRECT ANSWER: C. Phagocytosis
EXPERT RATIONALE: Phagocytosis is a form of endocytosis in which the cell membrane
surrounds and engulfs large particles, bacteria, or cellular debris. It is a key mechanism
in immune defense.
QUESTION 5
Which of the following is a characteristic of apoptosis?
A. Random cellular necrosis with inflammation
B. Swelling of the cell and organelles
C. Programmed, orderly cell death without inflammation
D. Rupture of the cell membrane
E. Release of lysosomal enzymes into surrounding tissue
CORRECT ANSWER: C. Programmed, orderly cell death without
inflammation
EXPERT RATIONALE: Apoptosis is a regulated process of cell death that occurs without
triggering inflammation. It involves characteristic changes such as cell shrinkage,
chromatin condensation, and formation of apoptotic bodies.
QUESTION 6
, What is the primary function of the sodium-potassium ATPase pump?
A. To move glucose across the cell membrane
B. To maintain electrochemical gradients by pumping Na⁺ out and K⁺ into the cell
C. To facilitate water movement through aquaporins
D. To transport oxygen across the mitochondrial membrane
E. To pump calcium ions into the sarcoplasmic reticulum
CORRECT ANSWER: B. To maintain electrochemical gradients by pumping
Na⁺ out and K⁺ into the cell
EXPERT RATIONALE: The Na⁺/K⁺ ATPase pump actively transports 3 sodium ions out of
the cell and 2 potassium ions into the cell per cycle, maintaining the resting membrane
potential and cellular volume.
QUESTION 7
Which type of cellular adaptation involves an increase in cell size?
A. Hyperplasia
B. Metaplasia
C. Atrophy
D. Hypertrophy
E. Dysplasia
CORRECT ANSWER: D. Hypertrophy
EXPERT RATIONALE: Hypertrophy is an increase in the size of individual cells, resulting
in an increase in the size of the organ. It occurs in response to increased workload, such
as cardiac hypertrophy in hypertension.
QUESTION 8
