PATHOPHYSIOLOGY ALL MODULE EXAMS
QUESTIONS AND ANSWERS- PORTAGE LEARNING
SOLUTION 2024/2025 RATED 100%
Module 1 Exam: Cellular Biology & Adaptation
Question 1
2..5 pts
True/False:
A bodybuilder's muscles will display hyperplasia.
True
✅ False
Correct!
It will display hypertrophy. Hyperplasia involves an increase in the
number of cells, while hypertrophy involves an increase in the
size of cells.
Question 2
2..5 pts
True/False:
Barrett esophagus is an example of dysplasia.
True
✅ False
Correct!
It's metaplasia. Metaplasia is the reversible replacement of one
mature cell type with another, which is an adaptive response to
chronic irritation.
Question 3
2..5 pts
True/False:
Hypertrophy is an increase in the size of an organ or tissue
caused by an increase in the number of cells.
✅ True
False
,Correct Answer: False
Rationale: Hypertrophy is an increase in cell size, not number.
Hyperplasia is an increase in cell number.
Question 4
2..5 pts
True/False:
Hypertrophy can occur under normal and pathological conditions.
✅ True
False
Correct!
Hypertrophy can be physiologic (e.g., muscle growth from
exercise) or pathologic (e.g., cardiac hypertrophy due to
hypertension).
Question 5
2..5 pts
Multiple Choice:
Which cellular adaptation involves a reversible change in which
one adult cell type is replaced by another adult cell type?
A. Atrophy
B. Hypertrophy
C. Metaplasia ✅
D. Dysplasia
Correct!
Metaplasia is the reversible replacement of one cell type by
another, often in response to chronic stress or irritation (e.g.,
smoking causing squamous metaplasia in the airways).
Question 6
2..5 pts
Multiple Choice:
Which of the following is considered a hallmark of reversible cell
injury?
A. Cell swelling ✅
B. Nuclear fragmentation
C. Membrane rupture
D. Mitochondrial calcification
,Correct!
Cellular swelling (hydropic change) is the most common and
earliest manifestation of reversible cell injury due to failure of
energy-dependent ion pumps.
Question 7
2..5 pts
True/False:
Apoptosis is a form of programmed cell death that does not incite
an inflammatory response.
✅ True
False
Correct!
Apoptosis is a regulated, energy-dependent process that avoids
inflammation, unlike necrosis which spills cellular contents and
triggers an immune response.
Question 8
2..5 pts
Multiple Choice:
Which type of necrosis is typically associated with a localized area
of ischemia in the brain?
A. Coagulative
B. Liquefactive ✅
C. Caseous
D. Fat
Correct!
Liquefactive necrosis occurs in the brain because the tissue lacks
a strong structural matrix (collagen) and enzymes rapidly digest
the dead cells, turning them into a liquid mass.
Question 9
2..5 pts
True/False:
Coagulative necrosis is characterized by preservation of tissue
architecture for a period of time.
✅ True
False
, Correct!
In coagulative necrosis (e.g., myocardial infarction), the structural
outline of the cells remains visible for days because the acidic
environment denatures both structural proteins and lysosomal
enzymes.
Question 10
2..5 pts
Multiple Choice:
Caseous necrosis is most commonly associated with which of the
following conditions?
A. Myocardial infarction
B. Tuberculosis ✅
C. Pancreatitis
D. Gangrenous appendicitis
Correct!
Caseous necrosis is a combination of coagulative and liquefactive
necrosis, characterized by a "cheese-like" appearance, and is
classically seen in tuberculosis infections.
Question 11
2..5 pts
Multiple Choice:
Which of the following is a primary cause of cellular aging?
A. Increased telomerase activity
B. Progressive accumulation of genetic mutations ✅
C. Enhanced DNA repair mechanisms
D. Decreased oxidative stress
Correct!
Cellular aging is driven by the progressive accumulation of
genetic and metabolic damage, including DNA mutations and
oxidative stress over time.
Question 12
2..5 pts
True/False:
Dysplasia is always irreversible and inevitably progresses to
cancer.
QUESTIONS AND ANSWERS- PORTAGE LEARNING
SOLUTION 2024/2025 RATED 100%
Module 1 Exam: Cellular Biology & Adaptation
Question 1
2..5 pts
True/False:
A bodybuilder's muscles will display hyperplasia.
True
✅ False
Correct!
It will display hypertrophy. Hyperplasia involves an increase in the
number of cells, while hypertrophy involves an increase in the
size of cells.
Question 2
2..5 pts
True/False:
Barrett esophagus is an example of dysplasia.
True
✅ False
Correct!
It's metaplasia. Metaplasia is the reversible replacement of one
mature cell type with another, which is an adaptive response to
chronic irritation.
Question 3
2..5 pts
True/False:
Hypertrophy is an increase in the size of an organ or tissue
caused by an increase in the number of cells.
✅ True
False
,Correct Answer: False
Rationale: Hypertrophy is an increase in cell size, not number.
Hyperplasia is an increase in cell number.
Question 4
2..5 pts
True/False:
Hypertrophy can occur under normal and pathological conditions.
✅ True
False
Correct!
Hypertrophy can be physiologic (e.g., muscle growth from
exercise) or pathologic (e.g., cardiac hypertrophy due to
hypertension).
Question 5
2..5 pts
Multiple Choice:
Which cellular adaptation involves a reversible change in which
one adult cell type is replaced by another adult cell type?
A. Atrophy
B. Hypertrophy
C. Metaplasia ✅
D. Dysplasia
Correct!
Metaplasia is the reversible replacement of one cell type by
another, often in response to chronic stress or irritation (e.g.,
smoking causing squamous metaplasia in the airways).
Question 6
2..5 pts
Multiple Choice:
Which of the following is considered a hallmark of reversible cell
injury?
A. Cell swelling ✅
B. Nuclear fragmentation
C. Membrane rupture
D. Mitochondrial calcification
,Correct!
Cellular swelling (hydropic change) is the most common and
earliest manifestation of reversible cell injury due to failure of
energy-dependent ion pumps.
Question 7
2..5 pts
True/False:
Apoptosis is a form of programmed cell death that does not incite
an inflammatory response.
✅ True
False
Correct!
Apoptosis is a regulated, energy-dependent process that avoids
inflammation, unlike necrosis which spills cellular contents and
triggers an immune response.
Question 8
2..5 pts
Multiple Choice:
Which type of necrosis is typically associated with a localized area
of ischemia in the brain?
A. Coagulative
B. Liquefactive ✅
C. Caseous
D. Fat
Correct!
Liquefactive necrosis occurs in the brain because the tissue lacks
a strong structural matrix (collagen) and enzymes rapidly digest
the dead cells, turning them into a liquid mass.
Question 9
2..5 pts
True/False:
Coagulative necrosis is characterized by preservation of tissue
architecture for a period of time.
✅ True
False
, Correct!
In coagulative necrosis (e.g., myocardial infarction), the structural
outline of the cells remains visible for days because the acidic
environment denatures both structural proteins and lysosomal
enzymes.
Question 10
2..5 pts
Multiple Choice:
Caseous necrosis is most commonly associated with which of the
following conditions?
A. Myocardial infarction
B. Tuberculosis ✅
C. Pancreatitis
D. Gangrenous appendicitis
Correct!
Caseous necrosis is a combination of coagulative and liquefactive
necrosis, characterized by a "cheese-like" appearance, and is
classically seen in tuberculosis infections.
Question 11
2..5 pts
Multiple Choice:
Which of the following is a primary cause of cellular aging?
A. Increased telomerase activity
B. Progressive accumulation of genetic mutations ✅
C. Enhanced DNA repair mechanisms
D. Decreased oxidative stress
Correct!
Cellular aging is driven by the progressive accumulation of
genetic and metabolic damage, including DNA mutations and
oxidative stress over time.
Question 12
2..5 pts
True/False:
Dysplasia is always irreversible and inevitably progresses to
cancer.
