Test Bank For McCance & Huether’s Pathophysiology, 9th Edition by Julia Rogers.pdf

Test Bank for McCan
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ogic Basis for Disease
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in Adults and Childre
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MCCANCE TEST
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BANK LATEST RE
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,Chapter m1:mCellular mBiology


MULTIPLEmCHOICE

1. Whichmcomponentm ofmthemcellmp ro dNuUc eR sSIhNyGd TroBg. Ce nO Mp e r o x id e m (H2 O2 )mbymusingmoxygenmt
omremovemhydrogenmatomsmfrommspecificmsubstratesm inmanmoxidativemreaction?
a. Lysosomes c. Ribosomes
b. Peroxisomes d.m Oxyhydrosomes
ANS:mB
Peroxisomesmaremsomnamed mbecausemtheymusuallymcontainmenzymes mthat musemoxygenmtomre
movemhydrogenmatomsmfrommspecificmsubstratesminmanmoxidativemreactionmthat mproducesmH2
O 2 ,mwhichmismampowerfulmoxidant mand mpotentiallymdestructivemif mit maccumulatesmormescapesm
frommperoxisomes.mRibosomesmaremRNA-
proteinmcomplexesm(nucleoproteins)mthat maremsynthesized minmthemnucleolusmand msecreted mint
omthemcytoplasmmthroughmporesminmthemnuclearmenvelopemcalled mnuclearmporemcomplexes. mL
ysosomesmaremsaclikemstructuresmthat moriginatemfrommthemGolgimcomplex mand mcontainmmore
mthanm40mdigestivemenzymesmcalled mhydrolases,mwhichmcatalyzembondsminmproteins,mlipids,mn

ucleicmacids,mand mcarbohydrates.mOxyhydrosomesmareminvolved minmenzymemproduction.

PTS:m m 1 REF:mPagem8

2. Whichmstatement mbest mdescribesmthemcellularmfunctionmof mmetabolicmabsorption?
a. Cellsmcanmproducemproteins. c. Cellsmcanmtakeminmand musemnutrients.
b. Cellsmcanmsecretemdigestivemenzymes. d.m Cellsmcanmsynthesizemfats.
ANS:mC
Inmmetabolicmabsorption,mallmcellsmtakeminmand musemnutrientsmand mothermsubstancesmfrommthei
rmsurroundings.mThemremainingmoptionsmare mnot minclusivem inmtheirmdescriptionsmof mcellular m
metabolicmabsorption.

PTS:m m 1 REF:mPagem2

3. Most mof mamcell’smgeneticminformation,mincludingmRNA mand mDNA,mismcontained minmthe:
a. Mitochondria c. Nucleolus
b. Ribosome d.m m Lysosome
ANS:mC
Themnucleusmcontainsmthemnucleolus,mamsmallmdensemstructuremcomposed mlargelymof mRNA,m
most mof mthemcellularmDNA,mand mthemDNA-
bindingmproteins,msuchmasmthemhistones,mwhichmregulatemitsmactivity.mThemothermoptionsmdomn
ot mcontainmmost mof mamcell’smgeneticminformation.

PTS:m m 1 REF:mPagem2

4. Whichmcellmcomponent mismcapablemof mcellularmautodigestionmwhenmit mismreleased mduringmc
ellminjury?
a. Ribosome c. Smoothmendoplasmicmreticulum

ANS:mD

, b. Golgimcomplex d.mLysosomes




ANS:mD