NURS 611 PATHOPHYSIOLOGY TEST
BANK 4 2026 COMPREHENSIVE
QUESTIONS AND ACCURATE
SOLUTIONS VERIFIED
◉ What are the three key functions of the plasma membrane? Answer:
Barrier function, transport regulation, and communication.
◉ What occurs during hypoxia? Answer: Oxygen depletion leads to ATP
depletion and cellular dysfunction, potentially resulting in cell death.
◉ What are common causes of hypoxia? Answer: Ischemia, lung
infections, anemia, carbon monoxide poisoning, and mitochondrial
dysfunction.
◉ What is the role of the nucleus in a cell? Answer: It serves as the
cellular control center and contains DNA.
◉ What is the function of the rough endoplasmic reticulum (Rough
ER)? Answer: It synthesizes immunoglobulins.
◉ What is the mitochondria's role in the cell? Answer: It is known as
the powerhouse of the cell, generating ATP.
,◉ Define malignancy. Answer: A complex response to cellular injury
involving uncontrolled growth, invasion, and metastasis.
◉ What is the difference between necrosis and apoptosis? Answer:
Necrosis is uncontrolled cell death with inflammation, while apoptosis
is a controlled, programmed cell death without inflammation.
◉ What happens to a cell during ischemia? Answer: Oxygen depletion
leads to ATP depletion, cellular swelling, and more severe cell injury
compared to hypoxia.
◉ What are the effects of free radicals on cells? Answer: They cause
loss of membrane integrity, defective genetic repair, and damage to
lipids, nucleic acids, and proteins.
◉ What is cellular adaptation? Answer: Increased activity to maintain
function, which can become maladaptive and lead to ischemia and
necrosis.
◉ What is atrophy? Answer: A decrease in cell size due to decreased
use or hormonal withdrawal.
◉ What is hypertrophy? Answer: An increase in cell size.
, ◉ What is hyperplasia? Answer: An increase in cell number that is
reversible.
◉ What is metaplasia? Answer: The replacement of one tissue type
with another.
◉ What is the difference between reversible and irreversible cell
damage? Answer: Reversible damage includes cellular swelling and
fatty change, while irreversible damage involves mitochondrial swelling
and loss of membrane integrity.
◉ What determines sex differentiation in fetal development? Answer:
The presence of the Y chromosome leads to male development, while
its absence results in female development.
◉ What are secondary sex characteristics? Answer: Features that
develop at puberty influenced by hormones, such as body hair and
breast development.
◉ What is epigenetics? Answer: Environmental interactions that lead to
heritable changes in gene expression without altering DNA.
◉ What are some examples of autosomal recessive traits? Answer:
Cystic Fibrosis, Sickle Cell Anemia, Tay-Sachs.
BANK 4 2026 COMPREHENSIVE
QUESTIONS AND ACCURATE
SOLUTIONS VERIFIED
◉ What are the three key functions of the plasma membrane? Answer:
Barrier function, transport regulation, and communication.
◉ What occurs during hypoxia? Answer: Oxygen depletion leads to ATP
depletion and cellular dysfunction, potentially resulting in cell death.
◉ What are common causes of hypoxia? Answer: Ischemia, lung
infections, anemia, carbon monoxide poisoning, and mitochondrial
dysfunction.
◉ What is the role of the nucleus in a cell? Answer: It serves as the
cellular control center and contains DNA.
◉ What is the function of the rough endoplasmic reticulum (Rough
ER)? Answer: It synthesizes immunoglobulins.
◉ What is the mitochondria's role in the cell? Answer: It is known as
the powerhouse of the cell, generating ATP.
,◉ Define malignancy. Answer: A complex response to cellular injury
involving uncontrolled growth, invasion, and metastasis.
◉ What is the difference between necrosis and apoptosis? Answer:
Necrosis is uncontrolled cell death with inflammation, while apoptosis
is a controlled, programmed cell death without inflammation.
◉ What happens to a cell during ischemia? Answer: Oxygen depletion
leads to ATP depletion, cellular swelling, and more severe cell injury
compared to hypoxia.
◉ What are the effects of free radicals on cells? Answer: They cause
loss of membrane integrity, defective genetic repair, and damage to
lipids, nucleic acids, and proteins.
◉ What is cellular adaptation? Answer: Increased activity to maintain
function, which can become maladaptive and lead to ischemia and
necrosis.
◉ What is atrophy? Answer: A decrease in cell size due to decreased
use or hormonal withdrawal.
◉ What is hypertrophy? Answer: An increase in cell size.
, ◉ What is hyperplasia? Answer: An increase in cell number that is
reversible.
◉ What is metaplasia? Answer: The replacement of one tissue type
with another.
◉ What is the difference between reversible and irreversible cell
damage? Answer: Reversible damage includes cellular swelling and
fatty change, while irreversible damage involves mitochondrial swelling
and loss of membrane integrity.
◉ What determines sex differentiation in fetal development? Answer:
The presence of the Y chromosome leads to male development, while
its absence results in female development.
◉ What are secondary sex characteristics? Answer: Features that
develop at puberty influenced by hormones, such as body hair and
breast development.
◉ What is epigenetics? Answer: Environmental interactions that lead to
heritable changes in gene expression without altering DNA.
◉ What are some examples of autosomal recessive traits? Answer:
Cystic Fibrosis, Sickle Cell Anemia, Tay-Sachs.
