,Clinical Pathophysiology Test Bank: Full-
Chapter Coverage with 880+ Practice
Questions (7th Ed.)
Contents
PART ONE: BASIC CONCEPTS OF PATHOPHYSIOLOGY
Unit 1: The Cell
1. Cellular Biology
2. Genes and Genetic Diseases
3. Epigenetics and Disease
4. Altered Cellular and Tissue Biology
5. Fluids and Electrolytes, Acids and Bases
Unit 2: Mechanisms of Self-Defense
6. Innate Immunity: Inflammation and Wound Healing
7. Adaptive Immunity
8. Alterations in Immunity NEW
9. Infection and Defects in Mechanisms of Defense
10. Stress and Disease
Unit 3: Cellular Proliferation: Cancer
11. Biology of Cancer
12. Cancer Epidemiology
13. Cancer in Children and Adolescents
PART TWO: BODY SYSTEMS AND DISEASES
Unit 4: The Neurologic System
14. Structure and Function of the Neurologic System
15. Pain, Temperature, Sleep, and Sensory Function
16. Alterations in Cognitive Systems, Cerebral Hemodynamics, and Motor Function
17. Disorders of the Central and Peripheral Nervous Systems and Neuromuscular Junction
18. Alterations of Neurologic Function in Children
Unit 5: The Endocrine System
19. Mechanisms of Hormonal Regulation
20. Alterations of Hormonal Regulation
21. Obesity and Disorders of Nutrition NEW
Unit 6: The Hematologic System
22. Structure and Function of the Hematologic System
,23. Alterations of Hematologic Function
24. Alterations of Hematologic Function in Children
Unit 7: The Cardiovascular and Lymphatic Systems
25. Structure and Function of the Cardiovascular and Lymphatic Systems
26. Alterations of Cardiovascular Function
27. Alterations of Cardiovascular Function in Children
Unit 8: The Pulmonary System
28. Structure and Function of the Pulmonary System
29. Alterations of Pulmonary Function
30. Alterations of Pulmonary Function in Children
Unit 9: The Renal and Urologic Systems
31. Structure and Function of the Renal and Urologic Systems
32. Alterations of Renal and Urinary Tract Function
33. Alterations of Renal and Urinary Tract Function in Children
Unit 10: The Reproductive Systems
34. Structure and Function of the Reproductive Systems
35. Alterations of the Female Reproductive System
36. Alterations of the Male Reproductive System
Unit 11: The Digestive System
37. Structure and Function of the Digestive System
38. Alterations of Digestive Function
39. Alterations of Digestive Function in Children
Unit 12: The Musculoskeletal and Integumentary Systems
40. Structure and Function of the Musculoskeletal System
41. Alterations of Musculoskeletal Function
42. Alterations of Musculoskeletal Function in Children
43. Structure, Function, and Disorders of the Integument
44. Alterations of the Integument in Children
,1. Which of the following is a defining characteristic that
distinguishes prokaryotic cells from eukaryotic cells?
A. Presence of membrane-bound organelles
B. Linear chromosomes
C. Mitotic cell division
D. Histone proteins associated with DNA
Correct Answer: A
Rationale: Prokaryotes lack membrane-bound organelles (e.g.,
nucleus, mitochondria), whereas eukaryotes possess them.
Linear chromosomes, mitosis, and histones are features of
eukaryotes.
Section Reference: 1.1 Prokaryotes and Eukaryotes
2. Bacterial ribosomes differ from eukaryotic ribosomes in
that bacterial ribosomes are:
A. 80S in size
B. Located within the nucleus
C. Comprised of 50S and 30S subunits
D. Responsible for post-translational modification
Correct Answer: C
Rationale: Bacterial (prokaryotic) ribosomes are 70S particles
made of 50S and 30S subunits; eukaryotic are 80S (60S + 40S).
Section Reference: 1.1 Prokaryotes and Eukaryotes
Which statement regarding eukaryotic and prokaryotic
genetic material is correct?
A. Both use circular DNA exclusively
B. Only eukaryotes have histones associated with DNA
,C. Prokaryotes package DNA around nucleosomes
D. Eukaryotic DNA is typically plasmid-encoded
Correct Answer: B
Rationale: Histone proteins package eukaryotic DNA;
prokaryotic DNA is naked and often circular but not wrapped
around nucleosomes.
Section Reference: 1.1 Prokaryotes and Eukaryotes
3. A key clinical implication of prokaryote/eukaryote
differences is that many antibiotics target:
A. Eukaryotic mitochondrial DNA
B. Prokaryotic 70S ribosomes
C. Eukaryotic Golgi apparatus
D. Prokaryotic nuclear membrane
Correct Answer: B
Rationale: Antibiotics often target prokaryotic 70S ribosomes
to inhibit bacterial protein synthesis without affecting
eukaryotic 80S ribosomes.
Section Reference: 1.1 Prokaryotes and Eukaryotes
4. Which cellular function involves the movement of water
across a semipermeable membrane?
A. Endocytosis
B. Diffusion
C. Osmosis
D. Active transport
Correct Answer: C
Rationale: Osmosis is the passive movement of water down its
,concentration gradient across a semipermeable membrane.
Section Reference: 1.2 Cellular Functions
5. The process by which a cell engulfs large particles or
microorganisms is called:
A. Pinocytosis
B. Phagocytosis
C. Exocytosis
D. Facilitated diffusion
Correct Answer: B
Rationale: Phagocytosis (“cell eating”) involves engulfing large
particles; pinocytosis is uptake of fluids.
Section Reference: 1.2 Cellular Functions
6. Which function is primarily responsible for maintaining the
cell’s resting membrane potential?
A. Na⁺/K⁺-ATPase pump
B. Endoplasmic reticulum Ca²⁺ release
C. Mitochondrial ATP synthesis
D. Lysosomal enzyme activity
Correct Answer: A
Rationale: The Na⁺/K⁺-ATPase pump actively transports 3 Na⁺
out and 2 K⁺ in, establishing ionic gradients for membrane
potential.
Section Reference: 1.2 Cellular Functions
7. A cell’s ability to respond to hormone signals is an example
of:
A. Cellular adhesion
,B. Signal transduction
C. Endocytosis
D. Autophagy
Correct Answer: B
Rationale: Signal transduction refers to conversion of
extracellular signals (e.g., hormones) into intracellular actions.
Section Reference: 1.2 Cellular Functions
8. Which organelle is the site of lipid synthesis and
detoxification of drugs and poisons?
A. Rough endoplasmic reticulum
B. Smooth endoplasmic reticulum
C. Golgi apparatus
D. Lysosome
Correct Answer: B
Rationale: Smooth ER synthesizes lipids and detoxifies
chemicals; rough ER is studded with ribosomes for protein
synthesis.
Section Reference: 1.3.1 Endoplasmic Reticulum
9. Which cytoskeletal element is composed of tubulin and is
responsible for chromosome movement during mitosis?
A. Microfilaments
B. Intermediate filaments
C. Microtubules
D. Myosin filaments
Correct Answer: C
Rationale: Microtubules are tubulin polymers forming the
,mitotic spindle for chromosome segregation.
Section Reference: 1.3.3 Cytoskeleton
10. Mitochondria are critical for cellular ATP production
because they:
A. House oxidative enzymes in the matrix
B. Contain ribosomes for protein synthesis
C. Degrade cellular debris
D. Synthesize lipids for membranes
Correct Answer: A
Rationale: The mitochondrial matrix contains enzymes of the
Krebs cycle and oxidative phosphorylation complexes for ATP
generation.
Section Reference: 1.3.2 Mitochondria
10. The Golgi apparatus modifies proteins by:
A. Phosphorylation of amino acids
B. Glycosylation and sorting into vesicles
C. Cleavage of signal peptides in the nucleus
D. Folding by chaperone proteins in the cytosol
Correct Answer: B
Rationale: The Golgi adds carbohydrate groups to proteins
(glycosylation) and sorts them into vesicles for delivery.
Section Reference: 1.3.2 Golgi Apparatus
11. Which organelle contains hydrolytic enzymes for
intracellular digestion?
A. Peroxisome
B. Lysosome
,C. Endosome
D. Proteasome
Correct Answer: B
Rationale: Lysosomes contain acid hydrolases to digest
macromolecules; peroxisomes degrade hydrogen peroxide.
Section Reference: 1.3.2 Lysosomes
12 A defect in which cell structure leads to primary ciliary
dyskinesia and impaired mucociliary clearance?
A. Microvilli
B. Cilia
C. Tight junctions
D. Desmosomes
Correct Answer: B
Rationale: Cilia microtubule dynein arm defects impair beating
and mucociliary transport in respiratory epithelium.
Section Reference: 1.3.3 Cytoskeleton
13. Intermediate filaments function primarily in:
A. Intracellular transport
B. Maintaining cell shape and mechanical strength
C. Cell motility
D. DNA replication
Correct Answer: B
Rationale: Intermediate filaments provide tensile strength and
maintain cell and tissue integrity.
Section Reference: 1.3.3 Cytoskeleton
, 14. Which cellular component detoxifies hydrogen peroxide?
A. Lysosome
B. Proteasome
C. Peroxisome
D. Mitochondrion
Correct Answer: C
Rationale: Peroxisomes contain catalase to convert H₂O₂ to
water and oxygen, protecting cells from oxidative damage.
Section Reference: 1.3.2 Peroxisomes
15. Which adhesion structure anchors epithelial cells to the
basement membrane?
A. Tight junction
B. Hemidesmosome
C. Gap junction
D. Adherens junction
Correct Answer: B
Rationale: Hemidesmosomes connect intermediate filaments in
epithelial cells to the underlying basement membrane.
Section Reference: 1.4.1 Cell–Cell and Cell–Matrix Adhesions
16. Tight junctions in epithelial layers primarily function to:
A. Facilitate cell communication
B. Prevent paracellular diffusion of solutes
C. Anchor cells to collagen fibers
D. Conduct electrical impulses
Correct Answer: B
Rationale: Tight junctions seal the intercellular space,
Chapter Coverage with 880+ Practice
Questions (7th Ed.)
Contents
PART ONE: BASIC CONCEPTS OF PATHOPHYSIOLOGY
Unit 1: The Cell
1. Cellular Biology
2. Genes and Genetic Diseases
3. Epigenetics and Disease
4. Altered Cellular and Tissue Biology
5. Fluids and Electrolytes, Acids and Bases
Unit 2: Mechanisms of Self-Defense
6. Innate Immunity: Inflammation and Wound Healing
7. Adaptive Immunity
8. Alterations in Immunity NEW
9. Infection and Defects in Mechanisms of Defense
10. Stress and Disease
Unit 3: Cellular Proliferation: Cancer
11. Biology of Cancer
12. Cancer Epidemiology
13. Cancer in Children and Adolescents
PART TWO: BODY SYSTEMS AND DISEASES
Unit 4: The Neurologic System
14. Structure and Function of the Neurologic System
15. Pain, Temperature, Sleep, and Sensory Function
16. Alterations in Cognitive Systems, Cerebral Hemodynamics, and Motor Function
17. Disorders of the Central and Peripheral Nervous Systems and Neuromuscular Junction
18. Alterations of Neurologic Function in Children
Unit 5: The Endocrine System
19. Mechanisms of Hormonal Regulation
20. Alterations of Hormonal Regulation
21. Obesity and Disorders of Nutrition NEW
Unit 6: The Hematologic System
22. Structure and Function of the Hematologic System
,23. Alterations of Hematologic Function
24. Alterations of Hematologic Function in Children
Unit 7: The Cardiovascular and Lymphatic Systems
25. Structure and Function of the Cardiovascular and Lymphatic Systems
26. Alterations of Cardiovascular Function
27. Alterations of Cardiovascular Function in Children
Unit 8: The Pulmonary System
28. Structure and Function of the Pulmonary System
29. Alterations of Pulmonary Function
30. Alterations of Pulmonary Function in Children
Unit 9: The Renal and Urologic Systems
31. Structure and Function of the Renal and Urologic Systems
32. Alterations of Renal and Urinary Tract Function
33. Alterations of Renal and Urinary Tract Function in Children
Unit 10: The Reproductive Systems
34. Structure and Function of the Reproductive Systems
35. Alterations of the Female Reproductive System
36. Alterations of the Male Reproductive System
Unit 11: The Digestive System
37. Structure and Function of the Digestive System
38. Alterations of Digestive Function
39. Alterations of Digestive Function in Children
Unit 12: The Musculoskeletal and Integumentary Systems
40. Structure and Function of the Musculoskeletal System
41. Alterations of Musculoskeletal Function
42. Alterations of Musculoskeletal Function in Children
43. Structure, Function, and Disorders of the Integument
44. Alterations of the Integument in Children
,1. Which of the following is a defining characteristic that
distinguishes prokaryotic cells from eukaryotic cells?
A. Presence of membrane-bound organelles
B. Linear chromosomes
C. Mitotic cell division
D. Histone proteins associated with DNA
Correct Answer: A
Rationale: Prokaryotes lack membrane-bound organelles (e.g.,
nucleus, mitochondria), whereas eukaryotes possess them.
Linear chromosomes, mitosis, and histones are features of
eukaryotes.
Section Reference: 1.1 Prokaryotes and Eukaryotes
2. Bacterial ribosomes differ from eukaryotic ribosomes in
that bacterial ribosomes are:
A. 80S in size
B. Located within the nucleus
C. Comprised of 50S and 30S subunits
D. Responsible for post-translational modification
Correct Answer: C
Rationale: Bacterial (prokaryotic) ribosomes are 70S particles
made of 50S and 30S subunits; eukaryotic are 80S (60S + 40S).
Section Reference: 1.1 Prokaryotes and Eukaryotes
Which statement regarding eukaryotic and prokaryotic
genetic material is correct?
A. Both use circular DNA exclusively
B. Only eukaryotes have histones associated with DNA
,C. Prokaryotes package DNA around nucleosomes
D. Eukaryotic DNA is typically plasmid-encoded
Correct Answer: B
Rationale: Histone proteins package eukaryotic DNA;
prokaryotic DNA is naked and often circular but not wrapped
around nucleosomes.
Section Reference: 1.1 Prokaryotes and Eukaryotes
3. A key clinical implication of prokaryote/eukaryote
differences is that many antibiotics target:
A. Eukaryotic mitochondrial DNA
B. Prokaryotic 70S ribosomes
C. Eukaryotic Golgi apparatus
D. Prokaryotic nuclear membrane
Correct Answer: B
Rationale: Antibiotics often target prokaryotic 70S ribosomes
to inhibit bacterial protein synthesis without affecting
eukaryotic 80S ribosomes.
Section Reference: 1.1 Prokaryotes and Eukaryotes
4. Which cellular function involves the movement of water
across a semipermeable membrane?
A. Endocytosis
B. Diffusion
C. Osmosis
D. Active transport
Correct Answer: C
Rationale: Osmosis is the passive movement of water down its
,concentration gradient across a semipermeable membrane.
Section Reference: 1.2 Cellular Functions
5. The process by which a cell engulfs large particles or
microorganisms is called:
A. Pinocytosis
B. Phagocytosis
C. Exocytosis
D. Facilitated diffusion
Correct Answer: B
Rationale: Phagocytosis (“cell eating”) involves engulfing large
particles; pinocytosis is uptake of fluids.
Section Reference: 1.2 Cellular Functions
6. Which function is primarily responsible for maintaining the
cell’s resting membrane potential?
A. Na⁺/K⁺-ATPase pump
B. Endoplasmic reticulum Ca²⁺ release
C. Mitochondrial ATP synthesis
D. Lysosomal enzyme activity
Correct Answer: A
Rationale: The Na⁺/K⁺-ATPase pump actively transports 3 Na⁺
out and 2 K⁺ in, establishing ionic gradients for membrane
potential.
Section Reference: 1.2 Cellular Functions
7. A cell’s ability to respond to hormone signals is an example
of:
A. Cellular adhesion
,B. Signal transduction
C. Endocytosis
D. Autophagy
Correct Answer: B
Rationale: Signal transduction refers to conversion of
extracellular signals (e.g., hormones) into intracellular actions.
Section Reference: 1.2 Cellular Functions
8. Which organelle is the site of lipid synthesis and
detoxification of drugs and poisons?
A. Rough endoplasmic reticulum
B. Smooth endoplasmic reticulum
C. Golgi apparatus
D. Lysosome
Correct Answer: B
Rationale: Smooth ER synthesizes lipids and detoxifies
chemicals; rough ER is studded with ribosomes for protein
synthesis.
Section Reference: 1.3.1 Endoplasmic Reticulum
9. Which cytoskeletal element is composed of tubulin and is
responsible for chromosome movement during mitosis?
A. Microfilaments
B. Intermediate filaments
C. Microtubules
D. Myosin filaments
Correct Answer: C
Rationale: Microtubules are tubulin polymers forming the
,mitotic spindle for chromosome segregation.
Section Reference: 1.3.3 Cytoskeleton
10. Mitochondria are critical for cellular ATP production
because they:
A. House oxidative enzymes in the matrix
B. Contain ribosomes for protein synthesis
C. Degrade cellular debris
D. Synthesize lipids for membranes
Correct Answer: A
Rationale: The mitochondrial matrix contains enzymes of the
Krebs cycle and oxidative phosphorylation complexes for ATP
generation.
Section Reference: 1.3.2 Mitochondria
10. The Golgi apparatus modifies proteins by:
A. Phosphorylation of amino acids
B. Glycosylation and sorting into vesicles
C. Cleavage of signal peptides in the nucleus
D. Folding by chaperone proteins in the cytosol
Correct Answer: B
Rationale: The Golgi adds carbohydrate groups to proteins
(glycosylation) and sorts them into vesicles for delivery.
Section Reference: 1.3.2 Golgi Apparatus
11. Which organelle contains hydrolytic enzymes for
intracellular digestion?
A. Peroxisome
B. Lysosome
,C. Endosome
D. Proteasome
Correct Answer: B
Rationale: Lysosomes contain acid hydrolases to digest
macromolecules; peroxisomes degrade hydrogen peroxide.
Section Reference: 1.3.2 Lysosomes
12 A defect in which cell structure leads to primary ciliary
dyskinesia and impaired mucociliary clearance?
A. Microvilli
B. Cilia
C. Tight junctions
D. Desmosomes
Correct Answer: B
Rationale: Cilia microtubule dynein arm defects impair beating
and mucociliary transport in respiratory epithelium.
Section Reference: 1.3.3 Cytoskeleton
13. Intermediate filaments function primarily in:
A. Intracellular transport
B. Maintaining cell shape and mechanical strength
C. Cell motility
D. DNA replication
Correct Answer: B
Rationale: Intermediate filaments provide tensile strength and
maintain cell and tissue integrity.
Section Reference: 1.3.3 Cytoskeleton
, 14. Which cellular component detoxifies hydrogen peroxide?
A. Lysosome
B. Proteasome
C. Peroxisome
D. Mitochondrion
Correct Answer: C
Rationale: Peroxisomes contain catalase to convert H₂O₂ to
water and oxygen, protecting cells from oxidative damage.
Section Reference: 1.3.2 Peroxisomes
15. Which adhesion structure anchors epithelial cells to the
basement membrane?
A. Tight junction
B. Hemidesmosome
C. Gap junction
D. Adherens junction
Correct Answer: B
Rationale: Hemidesmosomes connect intermediate filaments in
epithelial cells to the underlying basement membrane.
Section Reference: 1.4.1 Cell–Cell and Cell–Matrix Adhesions
16. Tight junctions in epithelial layers primarily function to:
A. Facilitate cell communication
B. Prevent paracellular diffusion of solutes
C. Anchor cells to collagen fibers
D. Conduct electrical impulses
Correct Answer: B
Rationale: Tight junctions seal the intercellular space,
