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Test Bank Understanding Path physiology 7th Edition complete questions and answers solutions (2021)
Test Bank Understanding Path physiology 7th Edition complete questions and answers solutions (2021)
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, Understanding liPathophysiology li7th liEdition liTest liBankChapter li1. liCellular liBiology
MULTIPLE liCHOICE
1. A listudent liis liobserving lia licell liunder lithe limicroscope. liIt liis liobserved lito lihave
lisupercoiled liDNA liwith lihistones. liWhich liof lithe lifollowing liwould lialso libe liobserved liby
lithe listudent?
a. A lisingle licircular lichromosome
b. A linucleus
c. Free-floating linuclear limaterial
d. No liorganelles
ANS: liB
The licell lidescribed liis lia lieukaryotic licell, liso liit lihas lihistones liand lia lisupercoiled liDNA
liwithin liits linucleus; lithus, lithe linucleus lishould libe liobserved.
A lisingle licircular lichromosome liis licharacteristic liof liprokaryotic licells, liwhich lido linot lihave
lihistones.
Free-floating linuclear limaterial lidescribes lia liprokaryotic licell, liwhich liwould linot lihave lia
lidistinct linucleus.
Eukaryotic licells lihave limembrane libounded licellular licomponents licalled liorganelles. liNo
liorganelles lidescribes lia liprokaryotic licell.
2. A linurse liis liinstructing lithe listaff liabout licellular lifunctions. liWhich licellular lifunction liis
lithe linurse lidescribing liwhen lian liisolated licell liabsorbs lioxygen liand liuses liit lito litransform
linutrients lito lienergy?
a. Metabolic liabsorption
b. Communication
c. Secretion
d. Respiration
,ANS: liD
The liability liof lithe licell lito liabsorb lioxygen lirefers lito lithe licells lifunction liof lirespiration.
The liability liof lithe licell lito lifunction liwithin lia lisociety liof licells lirefers lito liits lifunction liof
licommunication.
The liability liof lithe licell lito litake liin linutrients lirefers lito lithe licells lifunction liof limetabolic
liabsorption.
The liability liof lithe licell lito lisynthesize linew lisubstances liand lisecrete lithese lielsewhere lirefers lito
lithe licells lifunction liof lisecretion.
3. A lieukaryotic licell liis liundergoing liDNA lireplication. liIn liwhich liregion liof lithe licell liwould
limost liof lithe ligenetic liinformation libe licontained?
a. Mitochondria
b. Ribosome
c. Nucleolus
d. Nucleus
ANS: liC
The liregion liof lithe licell lithat licontains ligenetic limaterial, liincluding lia lilarge liamount liof
liribonucleic liacid, limost liof lithe liDNA, liand liDNA-binding liproteins, liis lithe linucleolus.
The limitochondria liis lithe lisite liof licellular lirespiration.
The liribosomes liare liinvolved liin limanufacturing liof liproteins liwithin lithe licell.
The linucleus licontains lithe linucleolus, liand liit liis lithe linucleolus lithat licontains ligenetic limaterial.
4. The lifluid limosaic limodel lifor libiologic limembranes lidescribes limembrane libehavior.
liAccording lito lithis limodel, liwhich liof lithe lifollowing lifloat lisingly lior lias liaggregates liin lithe
lifluid lilipid libilayer?
a. Peripheral limembrane liproteins
b. Integral limembrane liproteins
, c. Glycoproteins
d. Cell liadhesion limolecules
ANS: liB
Integral limembrane liproteins lifloat lifreely liin lithe lifluid lilipid libilayer.
Peripheral limembrane liproteins liare linot liembedded liin lithe lilayer, libut lireside liat lithe lisurface.
liGlycoproteins liact lias licell lisurface limarkers.
Cell liadhesion limolecules liare lion lithe lioutside liof lithe limembrane liand liallow licells lito lihook
litogether.
5. Which liof lithe lifollowing lican libind lito liplasma limembrane lireceptors?
a. Oxygen
b. Ribosomes
c. Amphipathic lilipids
d. Ligands
ANS: liD
Ligands liare lispecific limolecules lithat lican libind liwith lireceptors lion lithe licell
limembrane. liOxygen limoves liby lidiffusion; liit lidoes linot libind lito lireceptors.
Ribosomes limake liproteins liand liare linot liinvolved liin
libinding. liAmphipathic lilipids liare lia liportion liof lithe
licell limembrane.
6. A linurse liis lireviewing lia lireport lifrom lia lipatient liwith limetastatic licancer. liWhat
lifinding liwould lisupport lithe lidiagnosis liof limetastatic licancer? liAlterations liin
liextracellular limatrix lithat liinclude:
a. Decreased lifibronectin
b. Increased licollagen
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