TEST BANK FOR UNDERSTANDING PATHOPHYSIOLOGY 7TH EDITION BY SUE HUENTHER ; With Complete Solution

, Understanding HPathophysiology H7th HEdition HTest
HBankH
questions Hand Hanswers
Chapter H1. HCellular HBiology

MULTIPLE HCHOICE

1. A Hstudent His Hobserving Ha Hcell Hunder Hthe Hmicroscope. HIt His Hobserved Hto Hhave
Hsupercoiled HDNAHwith Hhistones. HWhich Hof Hthe Hfollowing Hwould Halso Hbe Hobserved

Hby Hthe Hstudent?


a. A Hsingle Hcircular Hchromosome
b. A Hnucleus
c. Free-floating Hnuclear Hmaterial
d. No Horganelles


ANS: HB

The Hcell Hdescribed His Ha Heukaryotic Hcell, Hso Hit Hhas Hhistones Hand Ha Hsupercoiled
HDNA Hwithin HitsHnucleus; Hthus, Hthe Hnucleus Hshould H be Hobserved.



A Hsingle Hcircular Hchromosome His Hcharacteristic Hof Hprokaryotic Hcells, Hwhich Hdo Hnot Hhave
Hhistones.



Free-floating Hnuclear Hmaterial Hdescribes Ha Hprokaryotic Hcell, Hwhich Hwould Hnot Hhave Ha
HdistinctHnucleus.



Eukaryotic Hcells Hhave Hmembrane Hbounded Hcellular Hcomponents Hcalled Horganelles. HNo
HorganellesHdescribes Ha Hprokaryotic Hcell.



2. A Hnurse His Hinstructing Hthe Hstaff Habout Hcellular Hfunctions. HWhich Hcellular Hfunction
His Hthe HnurseHdescribing Hwhen Han Hisolated Hcell Habsorbs Hoxygen Hand Huses Hit Hto

Htransform Hnutrients Hto Henergy?


a. Metabolic Habsorption
b. Communication
c. Secretion
d. Respiration

,ANS: HD

The Hability Hof Hthe Hcell Hto Habsorb Hoxygen Hrefers Hto Hthe Hcells Hfunction Hof Hrespiration.

The Hability Hof Hthe Hcell Hto Hfunction Hwithin Ha Hsociety Hof Hcells Hrefers Hto Hits
Hfunction HofHcommunication.



The Hability Hof Hthe Hcell Hto Htake Hin Hnutrients Hrefers Hto Hthe Hcells Hfunction Hof Hmetabolic
Habsorption.



The Hability Hof Hthe Hcell Hto Hsynthesize Hnew Hsubstances Hand Hsecrete Hthese Helsewhere
Hrefers Hto Hthe HcellsHfunction Hof Hsecretion.



3. A Heukaryotic Hcell His Hundergoing HDNA Hreplication. HIn Hwhich Hregion Hof Hthe Hcell
Hwould H most HofHthe Hgenetic H information Hbe Hcontained?


a. Mitochondria
b. Ribosome
c. Nucleolus
d. Nucleus


ANS: HC

The Hregion Hof Hthe Hcell Hthat Hcontains Hgenetic Hmaterial, Hincluding Ha Hlarge Hamount Hof
HribonucleicHacid, H most Hof Hthe HDNA, Hand HDNA-binding Hproteins, His Hthe Hnucleolus.



The Hmitochondria His Hthe Hsite Hof Hcellular Hrespiration.

The Hribosomes Hare Hinvolved Hin Hmanufacturing Hof Hproteins Hwithin Hthe Hcell.

The Hnucleus Hcontains Hthe Hnucleolus, Hand Hit His Hthe Hnucleolus Hthat Hcontains Hgenetic Hmaterial.

4. The Hfluid Hmosaic Hmodel Hfor Hbiologic Hmembranes Hdescribes Hmembrane Hbehavior.
HAccording HtoHthis Hmodel, Hwhich Hof Hthe Hfollowing H float Hsingly Hor Has Haggregates Hin

Hthe Hfluid Hlipid Hbilayer?


a. Peripheral Hmembrane Hproteins
b. Integral Hmembrane Hproteins

, c. Glycoproteins
d. Cell Hadhesion Hmolecules


ANS: HB

Integral Hmembrane Hproteins Hfloat Hfreely Hin Hthe Hfluid Hlipid Hbilayer.

Peripheral Hmembrane Hproteins Hare Hnot Hembedded Hin Hthe Hlayer, Hbut Hreside Hat Hthe

Hsurface.HGlycoproteins Hact H as Hcell Hsurface H markers.



Cell Hadhesion Hmolecules Hare Hon Hthe Houtside Hof Hthe Hmembrane Hand Hallow Hcells Hto Hhook
Htogether.



5. Which Hof Hthe Hfollowing Hcan Hbind Hto Hplasma Hmembrane Hreceptors?

a. Oxygen
b. Ribosomes
c. Amphipathic Hlipids
d. Ligands


ANS: HD

Ligands Hare Hspecific Hmolecules Hthat Hcan Hbind Hwith Hreceptors Hon Hthe Hcell

Hmembrane.HOxygen Hmoves Hby Hdiffusion; Hit Hdoes Hnot H bind Hto Hreceptors.



Ribosomes Hmake Hproteins Hand Hare Hnot Hinvolved Hin

Hbinding.HAmphipathic Hlipids Hare Ha Hportion Hof Hthe



Hcell Hmembrane.



6. A Hnurse His Hreviewing Ha Hreport Hfrom Ha Hpatient Hwith Hmetastatic Hcancer. HWhat
Hfinding HwouldHsupport Hthe Hdiagnosis Hof Hmetastatic Hcancer? HAlterations Hin

Hextracellular Hmatrix Hthat Hinclude:


a. Decreased Hfibronectin
b. Increased Hcollagen