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. The instructor asks which
cellular structure primarily controls what substances enter and leave the cell while also helping
maintain the cell's internal environment.
A. Nucleus
B. Plasma membrane
C. Ribosome
D. Golgi apparatus
Correct Answer: B
Rationale:
The plasma membrane forms the boundary between the cell's internal environment and the
extracellular environment. Its selective permeability allows the cell to regulate movement of
1
,Davis Advantage for Pathophysiology 3rd Edition Practice Questions | Nursing Pathophysiology Clinical Judgment & Exam Prep
substances into and out of the cell. This regulation is essential for maintaining cellular
homeostasis.
Why the Other Options Are Incorrect:
A. Nucleus: The nucleus contains the cell's genetic material and regulates many cellular
activities, but it does not primarily control movement of substances across the cell boundary.
B. Plasma membrane: Correct. It regulates movement of substances between the intracellular
and extracellular environments.
C. Ribosome: Ribosomes are responsible for protein synthesis rather than regulating transport
across the cell membrane.
D. Golgi apparatus: The Golgi apparatus modifies, sorts, and packages cellular products; it does
not form the primary selective barrier around the cell.
Chapter: Chapter 1: The Cell in Health and Illness
Topic: Cell Structure and Function
Subtopic: Plasma Membrane
Cognitive Level: Understanding
Question Type: MCQ
CJMM: Not applicable
Difficulty: Moderate
Question 2
A patient has a cellular disorder that interferes with the ability of cells to produce proteins needed
for normal cellular activity. Which cellular structure would be most directly involved in this
problem?
A. Lysosome
B. Mitochondrion
2
,Davis Advantage for Pathophysiology 3rd Edition Practice Questions | Nursing Pathophysiology Clinical Judgment & Exam Prep
C. Ribosome
D. Plasma membrane
Correct Answer: C
Rationale:
Ribosomes are the cellular structures responsible for protein synthesis. Because proteins
perform numerous structural, enzymatic, transport, and regulatory functions, impaired protein
production can substantially affect cellular function.
Why the Other Options Are Incorrect:
A. Lysosome: Lysosomes contain digestive enzymes that break down cellular materials and
waste products.
B. Mitochondrion: Mitochondria are primarily associated with cellular energy production.
C. Ribosome: Correct. Ribosomes synthesize proteins.
D. Plasma membrane: The plasma membrane regulates the movement of substances into and
out of the cell rather than directly synthesizing proteins.
Chapter: Chapter 1: The Cell in Health and Illness
Topic: Cell Structure and Function
Subtopic: Ribosomes and Protein Synthesis
Cognitive Level: Application
Question Type: MCQ
CJMM: Recognize Cues
Difficulty: Difficult
Question 3
3
, Davis Advantage for Pathophysiology 3rd Edition Practice Questions | Nursing Pathophysiology Clinical Judgment & Exam Prep
A cell requires a continuous supply of energy to support its normal activities. The nurse explains
that one organelle is particularly important because it generates most of the cell's usable energy.
Which organelle is the nurse describing?
A. Mitochondrion
B. Nucleus
C. Lysosome
D. Golgi apparatus
Correct Answer: A
Rationale:
The mitochondrion is the major organelle responsible for producing cellular energy in the form of
ATP through cellular respiration. Cells with high energy requirements therefore depend heavily on
mitochondrial function.
Why the Other Options Are Incorrect:
A. Mitochondrion: Correct. Mitochondria generate most cellular ATP.
B. Nucleus: The nucleus houses genetic material and regulates gene expression rather than
serving as the primary site of ATP production.
C. Lysosome: Lysosomes participate in intracellular digestion and recycling.
D. Golgi apparatus: The Golgi apparatus modifies, sorts, and packages cellular substances.
Chapter: Chapter 1: The Cell in Health and Illness
Topic: Cell Structure and Function
Subtopic: Mitochondria
Cognitive Level: Understanding
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. The instructor asks which
cellular structure primarily controls what substances enter and leave the cell while also helping
maintain the cell's internal environment.
A. Nucleus
B. Plasma membrane
C. Ribosome
D. Golgi apparatus
Correct Answer: B
Rationale:
The plasma membrane forms the boundary between the cell's internal environment and the
extracellular environment. Its selective permeability allows the cell to regulate movement of
1
,Davis Advantage for Pathophysiology 3rd Edition Practice Questions | Nursing Pathophysiology Clinical Judgment & Exam Prep
substances into and out of the cell. This regulation is essential for maintaining cellular
homeostasis.
Why the Other Options Are Incorrect:
A. Nucleus: The nucleus contains the cell's genetic material and regulates many cellular
activities, but it does not primarily control movement of substances across the cell boundary.
B. Plasma membrane: Correct. It regulates movement of substances between the intracellular
and extracellular environments.
C. Ribosome: Ribosomes are responsible for protein synthesis rather than regulating transport
across the cell membrane.
D. Golgi apparatus: The Golgi apparatus modifies, sorts, and packages cellular products; it does
not form the primary selective barrier around the cell.
Chapter: Chapter 1: The Cell in Health and Illness
Topic: Cell Structure and Function
Subtopic: Plasma Membrane
Cognitive Level: Understanding
Question Type: MCQ
CJMM: Not applicable
Difficulty: Moderate
Question 2
A patient has a cellular disorder that interferes with the ability of cells to produce proteins needed
for normal cellular activity. Which cellular structure would be most directly involved in this
problem?
A. Lysosome
B. Mitochondrion
2
,Davis Advantage for Pathophysiology 3rd Edition Practice Questions | Nursing Pathophysiology Clinical Judgment & Exam Prep
C. Ribosome
D. Plasma membrane
Correct Answer: C
Rationale:
Ribosomes are the cellular structures responsible for protein synthesis. Because proteins
perform numerous structural, enzymatic, transport, and regulatory functions, impaired protein
production can substantially affect cellular function.
Why the Other Options Are Incorrect:
A. Lysosome: Lysosomes contain digestive enzymes that break down cellular materials and
waste products.
B. Mitochondrion: Mitochondria are primarily associated with cellular energy production.
C. Ribosome: Correct. Ribosomes synthesize proteins.
D. Plasma membrane: The plasma membrane regulates the movement of substances into and
out of the cell rather than directly synthesizing proteins.
Chapter: Chapter 1: The Cell in Health and Illness
Topic: Cell Structure and Function
Subtopic: Ribosomes and Protein Synthesis
Cognitive Level: Application
Question Type: MCQ
CJMM: Recognize Cues
Difficulty: Difficult
Question 3
3
, Davis Advantage for Pathophysiology 3rd Edition Practice Questions | Nursing Pathophysiology Clinical Judgment & Exam Prep
A cell requires a continuous supply of energy to support its normal activities. The nurse explains
that one organelle is particularly important because it generates most of the cell's usable energy.
Which organelle is the nurse describing?
A. Mitochondrion
B. Nucleus
C. Lysosome
D. Golgi apparatus
Correct Answer: A
Rationale:
The mitochondrion is the major organelle responsible for producing cellular energy in the form of
ATP through cellular respiration. Cells with high energy requirements therefore depend heavily on
mitochondrial function.
Why the Other Options Are Incorrect:
A. Mitochondrion: Correct. Mitochondria generate most cellular ATP.
B. Nucleus: The nucleus houses genetic material and regulates gene expression rather than
serving as the primary site of ATP production.
C. Lysosome: Lysosomes participate in intracellular digestion and recycling.
D. Golgi apparatus: The Golgi apparatus modifies, sorts, and packages cellular substances.
Chapter: Chapter 1: The Cell in Health and Illness
Topic: Cell Structure and Function
Subtopic: Mitochondria
Cognitive Level: Understanding
Question Type: MCQ
CJMM: Not applicable
Difficulty: Moderate
4
