, Understanding Pathophysiology8th Edition Test Bank nw nw nw nw
Chapter 1. Cellular Biology
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MULTIPLE CHOICE nw
1. A student is observing a cell under the microscope. It is observed to have supercoiled
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DNA with histones. Which of the following would also be observed by the student?
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a. A single circular chromosome
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b. A nucleus nw
c. Free-floating nuclear material nw nw
d. No organelles nw
ANS: B nw
The cell described is a eukaryotic cell, so it has histones and a supercoiled DNA within its
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nucleus; thus, the nucleus should be observed.
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A single circular chromosome is characteristic of prokaryotic cells, which do not have histo
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nes.
Free-
floating nuclear material describes a prokaryotic cell, which would not have a distinct nucleu
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s.
Eukaryotic cells have membrane bounded cellular components called organelles. No organell
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es describes a prokaryotic cell.
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2. A nurse is instructing the staff about cellular functions. Which cellular function is the
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nurse describing when an isolated cell absorbs oxygen and uses it to transform nutrients
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to energy?
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a. Metabolic absorption nw
b. Communication
c. Secretion
d. Respiration
,ANS: D nw
The ability of the cell to absorb oxygen refers to the cells function of respiration.
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The ability of the cell to function within a society of cells refers to its function of commu
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nication.
The ability of the cell to take in nutrients refers to the cells function of metabolic absorptio
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n.
The ability of the cell to synthesize new substances and secrete these elsewhere refers to the
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cells function of secretion.
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3. A eukaryotic cell is undergoing DNA replication. In which region of the cell would m
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ost of the genetic information be contained?
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a. Mitochondria
b. Ribosome
c. Nucleolus
d. Nucleus
ANS: C nw
The region of the cell that contains genetic material, including a large amount of ribonucl
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eic acid, most of the DNA, and DNA-binding proteins, is the nucleolus.
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The mitochondria is the site of cellular respiration.
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The ribosomes are involved in manufacturing of proteins within the cell.
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The nucleus contains the nucleolus, and it is the nucleolus that contains genetic material.
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4. The fluid mosaic model for biologic membranes describes membrane behavior. Accordin
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g to this model, which of the following float singly or as aggregates in the fluid lipid bila
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yer?
a. Peripheral membrane proteins nw nw
b. Integral membrane proteins nw nw
, c. Glycoproteins
d. Cell adhesion molecules
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ANS: B nw
Integral membrane proteins float freely in the fluid lipid bilayer.
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Peripheral membrane proteins are not embedded in the layer, but reside at the surface. Glyco
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proteins act as cell surface markers.
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Cell adhesion molecules are on the outside of the membrane and allow cells to hook togeth
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er.
5. Which of the following can bind to plasma membrane receptors?
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a. Oxygen
b. Ribosomes
c. Amphipathic lipids nw
d. Ligands
ANS: D nw
Ligands are specific molecules that can bind with receptors on the cell membrane.
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Oxygen moves by diffusion; it does not bind to receptors.
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Ribosomes make proteins and are not involved in bindi
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ng. Amphipathic lipids are a portion of the cell membr
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ane.
6. A nurse is reviewing a report from a patient with metastatic cancer. What finding
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would support the diagnosis of metastatic cancer? Alterations in extracellular matrix th
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at include:
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a. Decreased fibronectin nw
b. Increased collagen nw
Chapter 1. Cellular Biology
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MULTIPLE CHOICE nw
1. A student is observing a cell under the microscope. It is observed to have supercoiled
nw nw nw nw nw nw nw nw nw nw nw nw nw nw nw
DNA with histones. Which of the following would also be observed by the student?
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a. A single circular chromosome
nw nw nw
b. A nucleus nw
c. Free-floating nuclear material nw nw
d. No organelles nw
ANS: B nw
The cell described is a eukaryotic cell, so it has histones and a supercoiled DNA within its
nw nw nw nw nw nw nw nw nw nw nw nw nw nw nw nw nw
nucleus; thus, the nucleus should be observed.
nw nw nw nw nw nw
A single circular chromosome is characteristic of prokaryotic cells, which do not have histo
nw nw nw nw nw nw nw nw nw nw nw nw nw
nes.
Free-
floating nuclear material describes a prokaryotic cell, which would not have a distinct nucleu
nw nw nw nw nw nw nw nw nw nw nw nw nw
s.
Eukaryotic cells have membrane bounded cellular components called organelles. No organell
nw nw nw nw nw nw nw nw nw nw
es describes a prokaryotic cell.
nw nw nw nw
2. A nurse is instructing the staff about cellular functions. Which cellular function is the
nw nw nw nw nw nw nw nw nw nw nw nw nw nw
nurse describing when an isolated cell absorbs oxygen and uses it to transform nutrients
nw nw nw nw nw nw nw nw nw nw nw nw nw n
to energy?
w nw
a. Metabolic absorption nw
b. Communication
c. Secretion
d. Respiration
,ANS: D nw
The ability of the cell to absorb oxygen refers to the cells function of respiration.
nw nw nw nw nw nw nw nw nw nw nw nw nw nw
The ability of the cell to function within a society of cells refers to its function of commu
nw nw nw nw nw nw nw nw nw nw nw nw nw nw nw nw nw
nication.
The ability of the cell to take in nutrients refers to the cells function of metabolic absorptio
nw nw nw nw nw nw nw nw nw nw nw nw nw nw nw nw
n.
The ability of the cell to synthesize new substances and secrete these elsewhere refers to the
nw nw nw nw nw nw nw nw nw nw nw nw nw nw nw
cells function of secretion.
nw nw nw nw
3. A eukaryotic cell is undergoing DNA replication. In which region of the cell would m
nw nw nw nw nw nw nw nw nw nw nw nw nw nw
ost of the genetic information be contained?
nw nw nw nw nw nw
a. Mitochondria
b. Ribosome
c. Nucleolus
d. Nucleus
ANS: C nw
The region of the cell that contains genetic material, including a large amount of ribonucl
nw nw nw nw nw nw nw nw nw nw nw nw nw nw
eic acid, most of the DNA, and DNA-binding proteins, is the nucleolus.
nw nw nw nw nw nw nw nw nw nw nw
The mitochondria is the site of cellular respiration.
nw nw nw nw nw nw nw
The ribosomes are involved in manufacturing of proteins within the cell.
nw nw nw nw nw nw nw nw nw nw
The nucleus contains the nucleolus, and it is the nucleolus that contains genetic material.
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4. The fluid mosaic model for biologic membranes describes membrane behavior. Accordin
nw nw nw nw nw nw nw nw nw nw
g to this model, which of the following float singly or as aggregates in the fluid lipid bila
nw nw nw nw nw nw nw nw nw nw nw nw nw nw nw nw nw
yer?
a. Peripheral membrane proteins nw nw
b. Integral membrane proteins nw nw
, c. Glycoproteins
d. Cell adhesion molecules
nw nw
ANS: B nw
Integral membrane proteins float freely in the fluid lipid bilayer.
nw nw nw nw nw nw nw nw nw
Peripheral membrane proteins are not embedded in the layer, but reside at the surface. Glyco
nw nw nw nw nw nw nw nw nw nw nw nw nw nw
proteins act as cell surface markers.
nw nw nw nw nw
Cell adhesion molecules are on the outside of the membrane and allow cells to hook togeth
nw nw nw nw nw nw nw nw nw nw nw nw nw nw nw
er.
5. Which of the following can bind to plasma membrane receptors?
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a. Oxygen
b. Ribosomes
c. Amphipathic lipids nw
d. Ligands
ANS: D nw
Ligands are specific molecules that can bind with receptors on the cell membrane.
nw nw nw nw nw nw nw nw nw nw nw nw nw
Oxygen moves by diffusion; it does not bind to receptors.
nw nw nw nw nw nw nw nw nw
Ribosomes make proteins and are not involved in bindi
nw nw nw nw nw nw nw nw
ng. Amphipathic lipids are a portion of the cell membr
nw nw nw nw nw nw nw nw nw
ane.
6. A nurse is reviewing a report from a patient with metastatic cancer. What finding
nw nw nw nw nw nw nw nw nw nw nw nw nw nw
would support the diagnosis of metastatic cancer? Alterations in extracellular matrix th
nw nw nw nw nw nw nw nw nw nw nw
at include:
nw
a. Decreased fibronectin nw
b. Increased collagen nw
