Test bank lehninger principles of biochemistry 7th edition david l nelson chapters 1 28

,1. InPaPbacterialPcell,PthePDNAPisPinPthe:
A) cellPenvelope.
B) cellPmembrane.
C) nucleoid.
D) nucleus.
E) ribosomes.


2. APmajorPchangePoccurringPinPthePevolutionPofPeukaryotesPfromPprokaryotesPwasPthe
developmentPof:
A) DNA.
B) photosyntheticPcapability.
C) plasmaPmembranes.
D) ribosomes.
E) thePnucleus.


3. InPeukaryotes,PthePnucleusPisPenclosedPbyPaPdoublePmembranePcalledPthe:
A) cellPmembrane.
B) nuclearPenvelope.
C) nucleolus.
D) nucleoplasm.
E) nucleosome.


4.PThePdimensionsPofPlivingPcellsParePlimited,PonPthePlowerPendPbyPthePminimumPnumberPofPb
iomoleculesPnecessaryPforPfunction,PandPonPthePupperPendPbyPthePratePofPdiffusionPofPsolu
tesPsuchPasPoxygen.PExceptPforPhighlyPelongatedPcells,PtheyPusuallyPhavePlengthsPandPdia
metersPinPthePrangePof:
A)PPP0.1PmPtoP10Pm.
B) 0.3PmPtoP30Pm.
C) 0.3PmPtoP100Pm.
D)PPP1PmPtoP100Pm.
E) 1PmPtoP300Pm.


5. WhichPgroupPofPsingle-celledPmicroorganismsPhasPmanyPmembersPfoundPgrowingPin
extremePenvironments?
A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) NonePofPthePanswersPisPcorrect.




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, 6. ThePbacteriumPE.PcoliPrequiresPsimplePorganicPmoleculesPforPgrowthPandPenergyóitPis
thereforePa:
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.


7. WhichPisPaPlistPofPorganelles?
A) mitochondria,Pchromatin,PendoplasmicPreticulum
B) peroxisomes,Plysosomes,PplasmaPmembrane
C) proteasomes,Pperoxisomes,Plysosomes
D) mitochondria,PendoplasmicPreticulum,Pperoxisomes
E) AllPofPthePanswersParePcorrect.


8. WhichPlistPhasPthePcellularPcomponentsParrangedPinPorderPofPINCREASINGPsize?
A) aminoPacidP<PproteinP<PmitochondrionP<Pribosome
B) aminoPacidP<PproteinP<PribosomeP<Pmitochondrion
C) aminoPacidP<PribosomeP<PproteinP<Pmitochondrion
D) proteinP<PaminoPacidP<PmitochondrionP<Pribosome
E) proteinP<PribosomeP<PmitochondrionP<PaminoPacid


9. ThePthree-
dimensionalPstructurePofPmacromoleculesPisPformedPandPmaintainedPprimarilyPthroughPno
ncovalentPinteractions.PPWhichPonePofPthePfollowingPisPNOTPconsideredPa
noncovalentPinteraction?
A) carbon-carbonPbonds
B) hydrogenPbonds
C) hydrophobicPinteractions
D) ionicPinteractions
E) vanPderPWaalsPinteractions


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




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, 11. ThePfourPcovalentPbondsPinPmethaneP(CH4)PareParrangedParoundPcarbonPtoPgivePwhichP
geometry?
A) linear
B) tetrahedral
C) trigonalPbipyramidal
D) trigonalPplanar
E) trigonalPpyramidal


12. WhatPfunctionalPgroupsParePpresentPonPthisPmolecule?




A) etherPandPaldehyde
B) hydroxylPandPaldehyde
C) hydroxylPandPcarboxylicPacid
D) hydroxylPandPester
E) hydroxylPandPketone


13. ThePmacromoleculesPthatPservePinPthePstoragePandPtransmissionPofPgeneticPinformation
are:
A) carbohydrates.
B) lipids.
C) membranes.
D) nucleicPacids.
E) proteins.


14. StereoisomersPthatParePnonsuperimposablePmirrorPimagesPofPeachPotherParePknownPas:
A) anomers.
B) cis-transPisomers.
C) diastereoisomers.
D) enantiomers.
E) geometricPisomers.




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