Test Bankfor Understanding Pathophysiology 7th Edition by Sue E.
Huether & Kathryn L. McCance 9780323639088 Chapter -441| Complete
Guide A+
,
,Chapter1. Cellular Biology
MULTIPLE CHOICE
1. A student isobservinga cell underthemicroscope.It is observedto havesupercoiledDNA with
histones. Which of the following would also be observed by the student?
a. A singlecircular chromosome
b. A nucleus
c. Free-floatingnuclearmaterial
d. No organelles
ANS: B
The cell described isa eukaryoticcell, so it hashistonesand a supercoiledDNA within its nucleus;
thus, the nucleus should be observed.
A singlecircular chromosomeis characteristicof prokaryoticcells, whichdo not havehistones.
Free-floatingnuclear materialdescribesa prokaryoticcell,whichwouldnot havea distinctnucleus.
Eukaryoticcellshavemembraneboundedcellularcomponentscalledorganelles.No organelles describes a
prokaryotic cell.
2. A nurseis instructingthestaffaboutcellular functions.Which cellular functionis thenurse
describing whenan isolated cellabsorbs oxygen and uses it to transform nutrients to energy?
a. Metabolicabsorption
b. Communication
c. Secretion
d. Respiration
, ANS: D
The abilityof the cellto absorboxygenrefers to thecells functionof respiration.
The abilityof thecell to functionwithin asocietyof cellsrefersto itsfunctionof communication.
The abilityof thecell to take in nutrients refers
to thecells functionof metabolicabsorption.
The abilityof thecell to synthesize newsubstances andsecretetheseelsewhererefersto thecells function of
secretion.
3. A eukaryoticcell is undergoing DNAreplication. Inwhich regionof thecell would most of the
genetic information be contained?
a. Mitochondria
b. Ribosome
c. Nucleolus
d. Nucleus
ANS: C
The regionof thecell that containsgenetic material, including
a largeamount ofribonucleic acid,
most of the DNA, and DNA-binding proteins, is the nucleolus.
The mitochondriais thesiteof cellularrespiration.
The ribosomesareinvolvedin manufacturingof proteinswithin thecell.
The nucleuscontainsthenucleolus,and it is thenucleolusthatcontainsgeneticmaterial.
4. The fluid mosaicmodelfor biologicmembranesdescribesmembranebehavior.According to this
model, which of the following float singly or as aggregates in the fluid lipid bilayer?
a. Peripheralmembraneproteins
Huether & Kathryn L. McCance 9780323639088 Chapter -441| Complete
Guide A+
,
,Chapter1. Cellular Biology
MULTIPLE CHOICE
1. A student isobservinga cell underthemicroscope.It is observedto havesupercoiledDNA with
histones. Which of the following would also be observed by the student?
a. A singlecircular chromosome
b. A nucleus
c. Free-floatingnuclearmaterial
d. No organelles
ANS: B
The cell described isa eukaryoticcell, so it hashistonesand a supercoiledDNA within its nucleus;
thus, the nucleus should be observed.
A singlecircular chromosomeis characteristicof prokaryoticcells, whichdo not havehistones.
Free-floatingnuclear materialdescribesa prokaryoticcell,whichwouldnot havea distinctnucleus.
Eukaryoticcellshavemembraneboundedcellularcomponentscalledorganelles.No organelles describes a
prokaryotic cell.
2. A nurseis instructingthestaffaboutcellular functions.Which cellular functionis thenurse
describing whenan isolated cellabsorbs oxygen and uses it to transform nutrients to energy?
a. Metabolicabsorption
b. Communication
c. Secretion
d. Respiration
, ANS: D
The abilityof the cellto absorboxygenrefers to thecells functionof respiration.
The abilityof thecell to functionwithin asocietyof cellsrefersto itsfunctionof communication.
The abilityof thecell to take in nutrients refers
to thecells functionof metabolicabsorption.
The abilityof thecell to synthesize newsubstances andsecretetheseelsewhererefersto thecells function of
secretion.
3. A eukaryoticcell is undergoing DNAreplication. Inwhich regionof thecell would most of the
genetic information be contained?
a. Mitochondria
b. Ribosome
c. Nucleolus
d. Nucleus
ANS: C
The regionof thecell that containsgenetic material, including
a largeamount ofribonucleic acid,
most of the DNA, and DNA-binding proteins, is the nucleolus.
The mitochondriais thesiteof cellularrespiration.
The ribosomesareinvolvedin manufacturingof proteinswithin thecell.
The nucleuscontainsthenucleolus,and it is thenucleolusthatcontainsgeneticmaterial.
4. The fluid mosaicmodelfor biologicmembranesdescribesmembranebehavior.According to this
model, which of the following float singly or as aggregates in the fluid lipid bilayer?
a. Peripheralmembraneproteins
