Test bank for
Understanding Pathophysiology 7thdition
By Su e Huether, McCance, and Brashers
, Understanding Pathophysiology 7th Edition Test Bank
Chapter 1. Cellular Biology
MULTIPLE CHOICE
1. A student is observing a cell under the microscope. It is observed to have
super coiled DNA with hi-stones. Which of the following would also be
observed by the student?
a. A single circular chromosome
b. A nucleus
c. Free-floating nuclear material
d. No organelles
ANS: B
The cell described is a eukaryotic cell, so it has hi-stones and a super-coiled DNA within
its nucleus; thus, the nucleus should be observed.
A single circular chromosome is characteristic of prokaryotic cells, which do not
have hi-stones. Free-floating nuclear material describes a prokaryotic cell, which
would not have a distinct nucleus.
Eukaryotic cells have membrane bounded cellular components called organelles. No
organelles describes a prokaryotic cell.
2. A nurse is instructing the staff about cellular functions. Which cellular
function is the nurse describing when an isolated cell absorbs oxygen and
uses it to transform nutrients to energy?
a. Metabolic absorption
b. Communication
c. Secretion
d. Respiration
ANS: D
The ability of the cell to absorb oxygen refers to the cells function of respiration.
,The ability of the cell to function within a society of cells refers to its function of
communication.
The ability of the cell to take in nutrients refers to the cells function of metabolic
absorption.
The ability of the cell to synthesize new substances and secrete these elsewhere refers
to the cells function of secretion.
3. A eukaryotic cell is undergoing dna replication. In which region of the cell
would most of the genetic information be contained?
a. Mitochondria
b. Ribosome
c. Nucleolus
d. Nucleus
Ans: C
The region of the cell that contains genetic material, including a large amount of
ribonucleic acid, most of the dna, and dna-binding proteins, is the nucleolus.
The mitochondria is the site of cellular respiration.
The ribosomes are involved in manufacturing of proteins within the cell.
The nucleus contains the nucleolus, and it is the nucleolus that contains genetic material.
4. The fluid mosaic model for biologic membranes describes membrane behavior.
According to this model, which of the following float singly or as aggregates in the
fluid lipid bilayer?
a. Peripheral membrane proteins
b. Integral membrane proteins
c. Glycoproteins
d. Cell adhesion molecules
Ans: B
Integral membrane proteins float freely in the fluid lipid bilayer.
Peripheral membrane proteins are not embedded in the layer, but reside at the surface.
Glycoproteins act as cell surface markers.
, Cell adhesion molecules are on the outside of the membrane and allow cells to hook
together.
5. Which of the following can bind to plasma membrane receptors?
a. Oxygen
b. Ribosomes
c. Amphipathic lipids
d. Ligands
Ans: D
Ligands are specific molecules that can bind with receptors on the cell
membrane. Oxygen moves by diffusion; it does not bind to receptors.
Ribosomes make proteins and are not involved in
binding. Amphipathic lipids are a portion of the cell
membrane.
6. A nurse is reviewing a report from a patient with metastatic cancer.
What finding would support the diagnosis of metastatic cancer? Alterations
in extracellular matrix that include:
a. Decreased fibronectin
b. Increased collagen
c. Decreased elastin
d. Increased glycoproteins
Ans: A
Reduced amounts of fibronectin are found in some types of cancerous cells, allowing
cancer cells to travel, or metastasize.
Collagen provides strength, and its breakdown is associated with osteoarthritis,
not cancer. Elastin is found in the lungs and allows tissues to stretch; it is not
associated with cancerous cells. Decreased, not increased, glycoproteins are
associated with cancerous cells.
Understanding Pathophysiology 7thdition
By Su e Huether, McCance, and Brashers
, Understanding Pathophysiology 7th Edition Test Bank
Chapter 1. Cellular Biology
MULTIPLE CHOICE
1. A student is observing a cell under the microscope. It is observed to have
super coiled DNA with hi-stones. Which of the following would also be
observed by the student?
a. A single circular chromosome
b. A nucleus
c. Free-floating nuclear material
d. No organelles
ANS: B
The cell described is a eukaryotic cell, so it has hi-stones and a super-coiled DNA within
its nucleus; thus, the nucleus should be observed.
A single circular chromosome is characteristic of prokaryotic cells, which do not
have hi-stones. Free-floating nuclear material describes a prokaryotic cell, which
would not have a distinct nucleus.
Eukaryotic cells have membrane bounded cellular components called organelles. No
organelles describes a prokaryotic cell.
2. A nurse is instructing the staff about cellular functions. Which cellular
function is the nurse describing when an isolated cell absorbs oxygen and
uses it to transform nutrients to energy?
a. Metabolic absorption
b. Communication
c. Secretion
d. Respiration
ANS: D
The ability of the cell to absorb oxygen refers to the cells function of respiration.
,The ability of the cell to function within a society of cells refers to its function of
communication.
The ability of the cell to take in nutrients refers to the cells function of metabolic
absorption.
The ability of the cell to synthesize new substances and secrete these elsewhere refers
to the cells function of secretion.
3. A eukaryotic cell is undergoing dna replication. In which region of the cell
would most of the genetic information be contained?
a. Mitochondria
b. Ribosome
c. Nucleolus
d. Nucleus
Ans: C
The region of the cell that contains genetic material, including a large amount of
ribonucleic acid, most of the dna, and dna-binding proteins, is the nucleolus.
The mitochondria is the site of cellular respiration.
The ribosomes are involved in manufacturing of proteins within the cell.
The nucleus contains the nucleolus, and it is the nucleolus that contains genetic material.
4. The fluid mosaic model for biologic membranes describes membrane behavior.
According to this model, which of the following float singly or as aggregates in the
fluid lipid bilayer?
a. Peripheral membrane proteins
b. Integral membrane proteins
c. Glycoproteins
d. Cell adhesion molecules
Ans: B
Integral membrane proteins float freely in the fluid lipid bilayer.
Peripheral membrane proteins are not embedded in the layer, but reside at the surface.
Glycoproteins act as cell surface markers.
, Cell adhesion molecules are on the outside of the membrane and allow cells to hook
together.
5. Which of the following can bind to plasma membrane receptors?
a. Oxygen
b. Ribosomes
c. Amphipathic lipids
d. Ligands
Ans: D
Ligands are specific molecules that can bind with receptors on the cell
membrane. Oxygen moves by diffusion; it does not bind to receptors.
Ribosomes make proteins and are not involved in
binding. Amphipathic lipids are a portion of the cell
membrane.
6. A nurse is reviewing a report from a patient with metastatic cancer.
What finding would support the diagnosis of metastatic cancer? Alterations
in extracellular matrix that include:
a. Decreased fibronectin
b. Increased collagen
c. Decreased elastin
d. Increased glycoproteins
Ans: A
Reduced amounts of fibronectin are found in some types of cancerous cells, allowing
cancer cells to travel, or metastasize.
Collagen provides strength, and its breakdown is associated with osteoarthritis,
not cancer. Elastin is found in the lungs and allows tissues to stretch; it is not
associated with cancerous cells. Decreased, not increased, glycoproteins are
associated with cancerous cells.
