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Test Bank for Understanding Pathophysiology (5th Ed) by Sue E. Huether, Kathryn L. McCance. Questions & Answers.

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Test Bank for Understanding Pathophysiology (5th Ed) by Sue E. Huether, Kathryn L. McCance. Questions & Answers.

Institution
Understanding Pathophysiology (5th Ed
Course
Understanding Pathophysiology (5th Ed

Content preview

,Chapter01:CellularBiology /
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HuetherandMcCance:Understanding
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Pathophysiology,5thEdition
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Chapter 01: Cellular /f /f



BiologyTest Bank
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MULTIPLECHOICE
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1. A student is observing a cell under the microscope. It is observed to have
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supercoiledDNAwith histones.Whichofthe following wouldalso beobserved
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bythestudent?
/f /f



a. Asinglecircular chromosome /f /f /f




b. Anucleus /f




c. Free-floating nuclearmaterial /f /f




d. Noorganelles /f




ANS:B
/f /f




Thecell described is a eukaryotic cell, so it has histones and a supercoiled
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DNAwithin itsnucleus;thus,thenucleus should beobserved.
l /f /f /f /f /f /f /f /f



Asinglecircularchromosomeischaracteristicofprokaryoticcells, whichdonot
/f /f /f /f /f /f /f /f /f /f /f



havehistones.
/f



Free-floatingnuclear materialdescribesa prokaryoticcell, whichwouldnothave /f /f /f /f /f /f /f /f /f /f



adistinctnucleus.
/f l /f



Eukaryoticcellshave membraneboundedcellularcomponentscalledorganelles.
/f /f /f /f /f /f /f /f



Noorganelles describes aprokaryotic cell.
/f /f /f /f



REF:p.2 /f /f



2. A nurse is instructing the staff about cellular functions. Which cellular function
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is the nurse describing when an isolated cell absorbs oxygen and uses it to transform
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nutrients to energy?
/f /f /f



a. Metabolicabsorption
b. Communication
c. Secretion
d. Respiration
ANS:D
/f /f



Theability ofthecelltoabsorboxygen referstothecell’sfunctionofrespiration.
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,Theability ofthecelltofunctionwithin asocietyofcells refersto its function
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ofcommunication.
/f l




Theability ofthecelltotakein nutrientsrefersto thecell’sfunctionof metabolicabsorption.
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Theability ofthecelltosynthesizenewsubstancesandsecretetheseelsewhererefersto the
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cell’s function of secretion.
/f /f /f /f



REF:p.3 /f /f



3. AeukaryoticcellisundergoingDNAreplication.Inwhichregionofthecell
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wouldmost of the genetic information be contained?
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a. Mitochondria
b. Ribosome
c. Nucleolus
d. Nucleus
ANS:C
/f /f




The region of the cell that contains genetic material, including a large amount
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of ribonucleic acid, most of the DNA, and DNA-binding proteins,
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/ is the nucleolus.The mitochondria is the site of cellular respiration.
f / f /f /f /f /f /f /f /f /f



Theribosomesareinvolved in manufacturing ofproteinswithin thecell. /f /f /f /f /f /f



The nucleus contains the nucleolus, and it is the nucleolus that
/ f / f / f / f / f / f / f / f / f / f



contains geneticmaterial.
/ f /f l




REF:p.5 /f /f



4. Thefluid mosaic modelforbiologicmembranesdescribesmembranebehavior.
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According to this model, which of the following float singly or as aggregates in
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thefluid lipid bilayer?
/f /f /f



a. Peripheralmembraneproteins /f




b. Integralmembraneproteins
c. Glycoproteins
d. Celladhesion molecules /f




ANS:B
/f /f




Integralmembraneproteinsfloatfreely inthefluid lipidbilayer. /f /f /f /f /f /f /f



Peripheralmembraneproteinsarenotembeddedin thelayer,butresideatthe
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surface.Glycoproteins act as cell surface markers.
/f /f /f /f /f /f

, Celladhesionmoleculesareontheoutsideof themembraneandallowcells to
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hooktogether.
/f l




REF:p.6 /f /f



5. Whichofthefollowingcanbind toplasma membrane receptors?
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a. Oxygen
b. Ribosomes
c. Amphipathiclipids /f




d. Ligands
ANS:D
/f /f




Ligands are specific molecules that can bind with receptors on the cell
/f /f /f /f /f /f /f /f /f /f /f



membrane.Oxygen movesbydiffusion;itdoesnotbindto receptors. /f /f /f /f /f /f /f /f



Ribosomes make proteins and are not involved in
/f /f /f /f /f /f /f /f



binding.Amphipathic lipids are a portion of the cell
/f /f /f /f /f /f /f /f



membrane.
REF:p.11 /f /f



6. Anurseis reviewinga reportfroma patientwith metastatic cancer.Whatfinding
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would support the diagnosis of metastatic cancer? Alterations in extracellular
/f /f /f /f /f /f /f /f /f /f



matrix thatinclude:
/f l /f



a. Decreasedfibronectin /f




b. Increased collagen /f




c. Decreased elastin /f




d. Increasedglycoproteins
ANS:A
/f /f




Reducedamounts of fibronectin are found in some types of cancerous cells,
/f /f /f /f /f /f /f /f /f /f /f



allowingcancer cells to travel, or metastasize. l /f /f /f /f /f



Collagenprovidesstrength,anditsbreakdownis associatedwithosteoarthritis, notcancer.
/f /f /f /f /f /f /f /f /f /f l




Elastinis foundinthelungsandallowstissuesto stretch;it is notassociated withcancerous
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cells.
/f



Decreased,notincreased,glycoproteinsareassociatedwithcancerous cells.REF:
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p.8
/f /f



7. Whichformofcellcommunicationis usedtorelateto othercells in direct
/f /f /f /f /f /f /f /f /f /f /f /f /f



physicalcontact?
/f

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Institution
Understanding Pathophysiology (5th Ed
Course
Understanding Pathophysiology (5th Ed

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Uploaded on
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Number of pages
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Written in
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Type
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