TEST BANK for Lehninger Principles of Biochemistry 7th Edition by Nelson and Cox All chapters covered

TEST BANK
Lehninger Principles of Biochemistry
7th Edition by Nelson and Cox
All chapters covered

,1. InKaKbacterialKcell,KtheKDNAK isKinKthe:
A) cellKenvelope.
B) cellKmembrane.
C) nucleoid.
D) nucleus.
E) ribosomes.


2. AKmajorKchangeKoccurringKinKtheKevolutionKofKeukaryotesKfromKprokaryotesKwasKtheK
developmentKof:
A) DNA.
B) photosyntheticKcapability.
C) plasmaKmembranes.
D) ribosomes.
E) theKnucleus.


3. InKeukaryotes,KtheKnucleusKisKenclosedKbyKaKdoubleKmembraneKcalledKthe:
A) cellKmembrane.
B) nuclearKenvelope.
C) nucleolus.
D) nucleoplasm.
E) nucleosome.


4. TheKdimensionsKofKlivingKcellsKareKlimited,KonKtheKlowerKendKbyKtheKminimumKnumberKofK
biomoleculesKnecessaryKforKfunction,KandKonKtheKupperKendKbyKtheKrateKofKdiffusionKofKs
olutesKsuchKasKoxygen.KExceptKforKhighlyKelongatedKcells,KtheyKusuallyKhaveKlengthsKandK
diametersKinKtheKrangeKof:
A) 0.1K mKtoK10K m.
B) 0.3K mKtoK30K m.
C) 0.3K mKtoK100K m.
D) 1K mKtoK100K m.
E) 1K mKtoK300K m.


5. WhichKgroupKofKsingle-
celledKmicroorganismsKhasKmanyKmembersKfoundKgrowingKinKextremeKenvironments
?
A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) NoneKofKtheKanswersKisKcorrect.



PageK1

, 6. TheKbacteriumKE.KcoliKrequiresKsimpleKorganicKmoleculesKforKgrowthKandKenergy—
itKisKthereforeKa:
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.


7. WhichKisKaKlistKofKorganelles?
A) mitochondria,Kchromatin,KendoplasmicKreticulum
B) peroxisomes,Klysosomes,KplasmaKmembrane
C) proteasomes,Kperoxisomes,Klysosomes
D) mitochondria,KendoplasmicKreticulum,Kperoxisomes
E) AllKofKtheKanswersKareKcorrect.


8. WhichKlistKhasKtheKcellularKcomponentsKarrangedKinKorderKofKINCREASINGKsize?
A) aminoKacidK<KproteinK<KmitochondrionK<Kribosome
B) aminoKacidK<KproteinK<KribosomeK<Kmitochondrion
C) aminoKacidK<KribosomeK<KproteinK<Kmitochondrion
D) proteinK<KaminoKacidK<KmitochondrionK<Kribosome
E) proteinK<KribosomeK<KmitochondrionK<KaminoKacid


9. TheKthree-
dimensionalKstructureKofKmacromoleculesK isKformedKandKmaintainedKprimarilyKthroughKn
oncovalentKinteractions.KWhichKoneKofKtheKfollowingKisKNOTKconsideredKaKnoncovalentKi
nteraction?
A) carbon-carbonKbonds
B) hydrogenKbonds
C) hydrophobicKinteractions
D) ionicKinteractions
E) vanKderKWaalsKinteractions


10. WhichKelementKisKNOTKamongKtheKfourKmostKabundantKinKlivingKorganisms?
A) carbon
B) hydrogen
C) nitrogen
D) oxygen
E) phosphorus




PageK2

, 11. TheKfourKcovalentKbondsKinKmethaneK(CH4)KareKarrangedKaroundKcarbonKtoKgiveKwhichK
geometry?
A) linear
B) tetrahedral
C) trigonalKbipyramidal
D) trigonalKplanar
E) trigonalKpyramidal


12. WhatKfunctionalKgroupsKareKpresentKonKthisKmolecule?




A) etherKandKaldehyde
B) hydroxylKandKaldehyde
C) hydroxylKandKcarboxylicKacid
D) hydroxylKandKester
E) hydroxylKandKketone


13. TheKmacromoleculesKthatKserveKinKtheKstorageKandKtransmissionKofKgeneticK informatio
nKare:
A) carbohydrates.
B) lipids.
C) membranes.
D) nucleicKacids.
E) proteins.


14. StereoisomersKthatKareKnonsuperimposableKmirrorKimagesKofKeachKotherKareKknownKas:
A) anomers.
B) cis-transKisomers.
C) diastereoisomers.
D) enantiomers.
E) geometricKisomers.


15. TheKcatalogKofKallKproteinsKfunctioningKinKaKcellK isKthe:
A) metabolome.
B) proteasome.
C) lysosome.
D) proteome.
E) genome.

PageK3