Davis Advantage for Pathophysiology 3rd Edition Practice Questions | Nursing Pathophysiology Clinical Judgment & Exam Prep
DAVIS ADVANTAGE FOR PATHOPHYSIOLOGY 3RD EDITION
PRACTICE QUESTIONS | NURSING PATHOPHYSIOLOGY
CLINICAL JUDGMENT & EXAM PREP
UNIT 1: THE CELL
CHAPTER 1: THE CELL IN HEALTH AND ILLNESS
CELL STRUCTURE AND FUNCTION
20 ORIGINAL PRACTICE QUESTIONS
Question 1
A nursing student is reviewing the basic organization of a human cell. Which structure primarily
controls cellular activities by regulating gene expression and containing the cell's genetic
material?
A. Ribosome
B. Nucleus
C. Lysosome
D. Golgi apparatus
Correct Answer: B
Rationale:
The nucleus contains the cell's genetic material and serves as a major control center for cellular
activities. Genetic information within the nucleus directs the production of proteins and
influences many cellular processes. The relationship between the nucleus and the rest of the cell
demonstrates how cellular structures work together to maintain normal function.
Why the Other Options Are Incorrect:
A. Ribosome: Ribosomes are responsible for protein synthesis but do not contain the cell's
primary genetic material or function as the central control center.
B. Nucleus: Correct. The nucleus contains genetic material and regulates cellular activity through
control of gene expression.
1
,Davis Advantage for Pathophysiology 3rd Edition Practice Questions | Nursing Pathophysiology Clinical Judgment & Exam Prep
C. Lysosome: Lysosomes contain digestive enzymes that break down cellular materials and
substances taken into the cell.
D. Golgi apparatus: The Golgi apparatus modifies, sorts, and packages proteins and other
cellular products rather than controlling gene expression.
Chapter: Chapter 1: The Cell in Health and Illness
Topic: Cell Structure and Function
Subtopic: Nucleus and Cellular Control
Cognitive Level: Understanding
Question Type: MCQ
CJMM: Not applicable
Difficulty: Moderate
Question 2
A patient asks why cells require mitochondria. Which response by the nurse is most accurate?
A. "Mitochondria store the cell's genetic material."
B. "Mitochondria produce much of the energy required for cellular activities."
C. "Mitochondria digest damaged cellular components."
D. "Mitochondria control movement of substances across the cell membrane."
Correct Answer: B
Rationale:
Mitochondria are major sites of cellular energy production. Cells require energy to perform
functions such as transport, synthesis, movement, and maintenance of cellular organization.
Because cellular activities depend on energy, mitochondrial function is essential for normal cell
survival and activity.
Why the Other Options Are Incorrect:
A. Genetic material is primarily contained within the nucleus rather than the mitochondria.
B. Correct. Mitochondria generate much of the energy used by the cell.
C. Lysosomes are associated with intracellular digestion and breakdown of cellular components.
D. The plasma membrane regulates movement of substances into and out of the cell.
Chapter: Chapter 1: The Cell in Health and Illness
Topic: Cell Structure and Function
Subtopic: Mitochondria
2
,Davis Advantage for Pathophysiology 3rd Edition Practice Questions | Nursing Pathophysiology Clinical Judgment & Exam Prep
Cognitive Level: Understanding
Question Type: MCQ
CJMM: Not applicable
Difficulty: Moderate
Question 3
A cell is producing large amounts of a protein that will ultimately be transported outside the cell.
Which cellular structures are most directly involved in this process?
A. Rough endoplasmic reticulum and Golgi apparatus
B. Lysosomes and mitochondria
C. Nucleus and centrioles
D. Peroxisomes and smooth endoplasmic reticulum
Correct Answer: A
Rationale:
Proteins destined for secretion are synthesized by ribosomes associated with the rough
endoplasmic reticulum. The proteins are then transported to the Golgi apparatus, where they
are modified, sorted, and packaged for delivery to their destinations, including secretion outside
the cell.
This illustrates an important principle of cell biology: cellular organelles perform specialized
functions but work together as an integrated system.
Why the Other Options Are Incorrect:
A. Correct. Rough endoplasmic reticulum and Golgi apparatus are central to production and
processing of many secreted proteins.
B. Lysosomes participate in intracellular digestion, whereas mitochondria are primarily involved in
energy production.
C. The nucleus contains genetic material, while centrioles are associated with cellular division
and organization of microtubules.
D. These structures perform other cellular functions and are not the primary pathway for
production and secretion of proteins.
Chapter: Chapter 1: The Cell in Health and Illness
Topic: Cell Structure and Function
Subtopic: Protein Synthesis and Processing
3
, Davis Advantage for Pathophysiology 3rd Edition Practice Questions | Nursing Pathophysiology Clinical Judgment & Exam Prep
Cognitive Level: Application
Question Type: MCQ
CJMM: Analyze Cues
Difficulty: Difficult
Question 4
Which cellular structure forms the selective boundary between the intracellular and extracellular
environments?
A. Nuclear membrane
B. Plasma membrane
C. Golgi apparatus
D. Cytoskeleton
Correct Answer: B
Rationale:
The plasma membrane surrounds the cell and separates its internal environment from the
extracellular environment. Its selective properties allow the cell to regulate the movement of
substances into and out of the cell. This regulation is essential for maintaining appropriate
conditions inside the cell.
Why the Other Options Are Incorrect:
A. The nuclear membrane surrounds the nucleus rather than the entire cell.
B. Correct. The plasma membrane forms the cell's external boundary.
C. The Golgi apparatus processes and packages cellular products.
D. The cytoskeleton provides structural support and participates in cellular organization and
movement.
Chapter: Chapter 1: The Cell in Health and Illness
Topic: Cell Structure and Function
Subtopic: Plasma Membrane
Cognitive Level: Recall
Question Type: MCQ
CJMM: Not applicable
Difficulty: Moderate
4
DAVIS ADVANTAGE FOR PATHOPHYSIOLOGY 3RD EDITION
PRACTICE QUESTIONS | NURSING PATHOPHYSIOLOGY
CLINICAL JUDGMENT & EXAM PREP
UNIT 1: THE CELL
CHAPTER 1: THE CELL IN HEALTH AND ILLNESS
CELL STRUCTURE AND FUNCTION
20 ORIGINAL PRACTICE QUESTIONS
Question 1
A nursing student is reviewing the basic organization of a human cell. Which structure primarily
controls cellular activities by regulating gene expression and containing the cell's genetic
material?
A. Ribosome
B. Nucleus
C. Lysosome
D. Golgi apparatus
Correct Answer: B
Rationale:
The nucleus contains the cell's genetic material and serves as a major control center for cellular
activities. Genetic information within the nucleus directs the production of proteins and
influences many cellular processes. The relationship between the nucleus and the rest of the cell
demonstrates how cellular structures work together to maintain normal function.
Why the Other Options Are Incorrect:
A. Ribosome: Ribosomes are responsible for protein synthesis but do not contain the cell's
primary genetic material or function as the central control center.
B. Nucleus: Correct. The nucleus contains genetic material and regulates cellular activity through
control of gene expression.
1
,Davis Advantage for Pathophysiology 3rd Edition Practice Questions | Nursing Pathophysiology Clinical Judgment & Exam Prep
C. Lysosome: Lysosomes contain digestive enzymes that break down cellular materials and
substances taken into the cell.
D. Golgi apparatus: The Golgi apparatus modifies, sorts, and packages proteins and other
cellular products rather than controlling gene expression.
Chapter: Chapter 1: The Cell in Health and Illness
Topic: Cell Structure and Function
Subtopic: Nucleus and Cellular Control
Cognitive Level: Understanding
Question Type: MCQ
CJMM: Not applicable
Difficulty: Moderate
Question 2
A patient asks why cells require mitochondria. Which response by the nurse is most accurate?
A. "Mitochondria store the cell's genetic material."
B. "Mitochondria produce much of the energy required for cellular activities."
C. "Mitochondria digest damaged cellular components."
D. "Mitochondria control movement of substances across the cell membrane."
Correct Answer: B
Rationale:
Mitochondria are major sites of cellular energy production. Cells require energy to perform
functions such as transport, synthesis, movement, and maintenance of cellular organization.
Because cellular activities depend on energy, mitochondrial function is essential for normal cell
survival and activity.
Why the Other Options Are Incorrect:
A. Genetic material is primarily contained within the nucleus rather than the mitochondria.
B. Correct. Mitochondria generate much of the energy used by the cell.
C. Lysosomes are associated with intracellular digestion and breakdown of cellular components.
D. The plasma membrane regulates movement of substances into and out of the cell.
Chapter: Chapter 1: The Cell in Health and Illness
Topic: Cell Structure and Function
Subtopic: Mitochondria
2
,Davis Advantage for Pathophysiology 3rd Edition Practice Questions | Nursing Pathophysiology Clinical Judgment & Exam Prep
Cognitive Level: Understanding
Question Type: MCQ
CJMM: Not applicable
Difficulty: Moderate
Question 3
A cell is producing large amounts of a protein that will ultimately be transported outside the cell.
Which cellular structures are most directly involved in this process?
A. Rough endoplasmic reticulum and Golgi apparatus
B. Lysosomes and mitochondria
C. Nucleus and centrioles
D. Peroxisomes and smooth endoplasmic reticulum
Correct Answer: A
Rationale:
Proteins destined for secretion are synthesized by ribosomes associated with the rough
endoplasmic reticulum. The proteins are then transported to the Golgi apparatus, where they
are modified, sorted, and packaged for delivery to their destinations, including secretion outside
the cell.
This illustrates an important principle of cell biology: cellular organelles perform specialized
functions but work together as an integrated system.
Why the Other Options Are Incorrect:
A. Correct. Rough endoplasmic reticulum and Golgi apparatus are central to production and
processing of many secreted proteins.
B. Lysosomes participate in intracellular digestion, whereas mitochondria are primarily involved in
energy production.
C. The nucleus contains genetic material, while centrioles are associated with cellular division
and organization of microtubules.
D. These structures perform other cellular functions and are not the primary pathway for
production and secretion of proteins.
Chapter: Chapter 1: The Cell in Health and Illness
Topic: Cell Structure and Function
Subtopic: Protein Synthesis and Processing
3
, Davis Advantage for Pathophysiology 3rd Edition Practice Questions | Nursing Pathophysiology Clinical Judgment & Exam Prep
Cognitive Level: Application
Question Type: MCQ
CJMM: Analyze Cues
Difficulty: Difficult
Question 4
Which cellular structure forms the selective boundary between the intracellular and extracellular
environments?
A. Nuclear membrane
B. Plasma membrane
C. Golgi apparatus
D. Cytoskeleton
Correct Answer: B
Rationale:
The plasma membrane surrounds the cell and separates its internal environment from the
extracellular environment. Its selective properties allow the cell to regulate the movement of
substances into and out of the cell. This regulation is essential for maintaining appropriate
conditions inside the cell.
Why the Other Options Are Incorrect:
A. The nuclear membrane surrounds the nucleus rather than the entire cell.
B. Correct. The plasma membrane forms the cell's external boundary.
C. The Golgi apparatus processes and packages cellular products.
D. The cytoskeleton provides structural support and participates in cellular organization and
movement.
Chapter: Chapter 1: The Cell in Health and Illness
Topic: Cell Structure and Function
Subtopic: Plasma Membrane
Cognitive Level: Recall
Question Type: MCQ
CJMM: Not applicable
Difficulty: Moderate
4
