TEST BANK PATHOPHYSIOLOGY 8TH EDITION MCCANCE

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TEST BANK PATHOPHYSIOLOGY 8TH EDITION MCCANCE Chapter`n1:`nCellular`nBiology MULTIPLE`nCHOICE 1. Which`nstatement `nbest `ndescribes`nthe`ncellular`nfunction`nof`nmetabolic`nabsorption? a. Cells`n ... can`nproduce`nproteins. c. Cells`ncan`ntake`nin`nand`nuse`nnutrients. b. Cells`ncan`nsecrete`ndigestive`nenzymes. d. ` n Cells`ncan`nsynthesize`nfats. ANS: ` nC In`nmetabolic`nabsorption, `nall `ncells`ntake`nin`nand`nuse`nnutrients`nand`nother`nsubstances`nfrom `ntheir`nsurroundings. `nThe`nremaining`noptions`nare`nnot `ninclusive`nin`ntheir`ndescriptions`nof `ncellular`nmetabolic`nabsorption. PTS: `n `n ` n 1 REF: ` n Page`n2 2. Most `nof`na`ncell’s`ngenetic`ninformation, `nincluding`nRNA`nand`nDNA, `nis`ncontained`nin`nthe: a. Mitochondria c. Nucleolus b. Ribosome d. `n `n ` nLysosome ANS: ` nC The`nnucleus`ncontains`nthe`nnucleolus, `na`nsmall `ndense`nstructure`ncomposed`nlargely`nof`nRNA, `nmost `nof`nthe`ncellular`nDNA, `nand`nthe`nDNA-binding`nproteins, `nsuch`nas`nthe`nhistones, `nwhich `nregulate`nits`nactivity. `nThe`nother`noptions`ndo`nnot `ncontain`nmost `nof`na`ncell’s`ngenetic `ninformation. PTS: `n `n ` n 1 REF: ` n Page`n2 3. Which`ncomponent `nof`nthe`ncell `nprodNuUceRsSIhNyGdTroBg.CenOMperoxide`n(H2O2)`nby`nusing`noxygen `nto`nremove`nhydrogen`natoms`nfrom`nspecific`nsubstrates`nin`nan`noxidative`nreaction? a. Lysosomes c. Ribosomes b. Peroxisomes d. ` n Oxyhydrosomes ANS: ` nB Peroxisomes`nare`nso`nnamed`nbecause`nthey`nusually`ncontain`nenzymes`nthat `nuse`noxygen`nto `nremove`nhydrogen`natoms`nfrom`nspecific`nsubstrates`nin`nan`noxidative`nreaction`nthat `nproduces `nH2O2, `nwhich`nis`na`npowerful `noxidant `nand`npotentially`ndestructive`nif`nit `naccumulates`nor`nescapes `nfrom`nperoxisomes. `nRibosomes`nare`nRNA-protein`ncomplexes`n(nucleoproteins)`nthat `nare `nsynthesized`nin`nthe`nnucleolus`nand`nsecreted`ninto`nthe`ncytoplasm`nthrough`npores`nin`nthe`nnuclear `nenvelope`ncalled`nnuclear`npore`ncomplexes. `nLysosomes`nare`nsaclike`nstructures`nthat `noriginate `nfrom`nthe`nGolgi `ncomplex`nand`ncontain`nmore`nthan`n40`ndigestive`nenzymes`ncalled`nhydrolases, `nwhich`ncatalyze`nbonds`nin`nproteins, `nlipids, `nnucleic`nacids, `nand`ncarbohydrates. `nOxyhydrosomes`nare`ninvolved`nin`nenzyme`nproduction. PTS: `n `n ` n 1 REF: ` n Page`n8 4. Which`ncell `ncomponent `nis`ncapable`nof`ncellular`nautodigestion`nwhen`nit `nis`nreleased`nduring `ncell`ninjury? a. Ribosome c. Smooth`nendoplasmic`nreticulum b. Golgi `ncomplex d. ` n Lysosomes ANS: ` nD PATHOPHYSIOLOGY`n8TH`nEDITION`nMCCANCE`nTEST`nBANK NURSINGTB.COM The`nlysosomal `nmembrane`nacts`nas`na`nprotective`nshield`nbetween`nthe`npowerful `ndigestive `nenzymes`nwithin`nthe`nlysosome`nand`nthe`ncytoplasm, `npreventing`ntheir`nleakage`ninto`nthe `ncytoplasmic`nmatrix. `nDisruption`nof`nthe`nmembrane`nby`nvarious`ntreatments`nor`ncellular`ninjury `nleads`nto`na`nrelease`nof`nthe`nlysosomal `nenzymes, `nwhich`ncan`nthen`nreact `nwith`ntheir`nspecific `nsubstrates, `ncausing`ncellular`nself-digestion. `nThe`nother`noptions`ndo`nnot `ncorrectly`ndescribe `nthis`nprocess. PTS: `n `n ` n 1 REF: ` n Pages`n7-8 5. What `nis`nthe`nsequence`nof`nsteps`nin`nthe`ndevelopment `nof`na`ndigestive`nenzyme`nby`nthe `npancreas`ncells`nfrom`nthe`ninitial `ntranscription`nto`nthe`nrelease`nfrom`nthe`ncell? a. The`nenzyme`nis`ntranscribed`nfrom`nDNA`nby`nRNA`nin`nthe`nnucleus, `nproceeds`nto `nthe`nribosome`nfor`nsynthesis, `nand`nis`ntransported`nin`na`nsecretory`nvesicle`nto`nthe `ncell `nmembrane. b. The`nenzyme`nis`ntranscribed`nfrom`nRNA`nby`nDNA`nin`nthe`nnucleus, `nproceeds`nto`nthe `nlysosome`nfor`nsynthesis, `nand`nis`ntransported`nin`nan`nencapsulated`nmembrane`nto`nthe `ncell`nmembrane. c. The`nenzyme`nis`ntranscribed`nby`nthe`nmitochondria`nin`nthe`nnucleus, `nproceeds`nto`nthe `nribosome`nfor`nsynthesis, `nand`nis`ntransported`nin`na`ncytoskeleton`nto`nthe`ncell `nmembrane. d. The`nenzyme`nis`ntranscribed`nfrom`nDNA`nby`nRNA`nin`nthe`nnucleus, `nproceeds`nto`nthe `nGolgi `ncomplex`nfor`nsynthesis, `nand`nis`ntransported`nin`na`ncytosol `nto`nthe`ncell `nmembrane. ANS: ` nA The`nenzyme`nis`ntranscribed`nfrom`nDNA`nby`nRNA`nin`nthe`nnucleus, `nproceeds`nto`nthe `nribosome`nfor`nsynthesis, `nand`nis`ntransported`nin`na`nsecretory`nvesicle`nto`nthe`ncell `nmembrane. `nThe`nother`noptions`ndo`nnot `ncorrectly`ndescribe`nthis`nprocess. NURSINGTB.COM PTS: `n `n ` n 1 REF: ` n Page`n7`n|`nFigure`n1-5 6. During`nwhich`nphase`nof`nthe`ncell `ncycle`nis`nDNA`nsynthesized? a. G1 c. G2 b. S d. ` n M ANS: ` nB The`nfour`ndesignated`nphases`nof`nthe`ncell `ncycle`nare: `n(1)`nthe`nG1`nphase`n(G`n=`ngap), `nwhich`nis`nthe `nperiod`nbetween`nthe`nM`nphase`n(M`n=`nmitosis)`nand`nthe`nstart `nof`nDNA`nsynthesis; `n(2)`nthe`nS `nphase`n(S`n=`nsynthesis), `nduring`nwhich`nDNA`nis`nsynthesized`nin`nthe`ncell `nnucleus; `n(3)`nthe`nG2 `nphase, `nduring`nwhich`nRNA`nand`nprotein`nsynthesis`noccurs, `nthe`nperiod`nbetween`nthe `ncompletion`nof`nDNA`nsynthesis`nand`nthe`nnext `nphase`n(M); `nand`n(4)`nthe`nM`nphase, `nwhich `nincludes`nnuclear`nand`ncytoplasmic`ndivision. PTS: `n `n ` n 1 REF: ` n Page`n37 7. What `norganic`ncompound`nfacilitates`ntransportation`nacross`ncell `nmembranes`nby`nacting `nas`nreceptors, `ntransport `nchannels`nfor`nelectrolytes, `nand`nenzymes`nto`ndrive`nactive`npumps? a. Lipids c. Proteins b. Proteases d. ` n Carbohydrates ANS: ` nC [Show More]

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