Test bank for Lehninger Principles of Biochemistry, 7th Edition, Principles Biochem 7e (International Ed)

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, Test Bank: Lehninger Principles of Biochemistry, 7th Editio
r r r r r r r



n, David L. Nelson Chapters 1-28.
r r r r r




1. Inrarbacterialrcell,rtherDNArisrinrthe:
A) cellrenvelope.
B) cellrmembrane.
C) nucleoid.
D) nucleus.
E) ribosomes.


2. Armajorrchangeroccurringrinrtherevolutionrofreukaryotesrfromrprokaryotesrwasrthe
developmentrof:
A) DNA.
B) photosyntheticrcapability.
C) plasmarmembranes.
D) ribosomes.
E) thernucleus.


3. Inreukaryotes,rthernucleusrisrenclosedrbyrardoublermembranercalledrthe:
A) cellrmembrane.
B) nuclearrenvelope.
C) nucleolus.
D) nucleoplasm.
E) nucleosome.


4. Therdimensionsrofrlivingrcellsrarerlimited,ronrtherlowerrendrbyrtherminimumrnumberrofrbio
moleculesrnecessaryrforrfunction,randronrtherupperrendrbyrtherraterofrdiffusionrof
solutesrsuchrasroxygen.rExceptrforrhighlyrelongatedrcells,rtheyrusuallyrhaverlengthsrandrdia
metersrinrtherrangerof:
A) 0.1rmrtor10rm.
B) 0.3rmrtor30rm.
C) 0.3rmrtor100rm.
D) 1rmrtor100rm.
E) 1rmrtor300rm.




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,5. Whichrgrouprofrsingle-celledrmicroorganismsrhasrmanyrmembersrfoundrgrowingrin
extremerenvironments?
A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) Nonerofrtheranswersrisrcorrect.


6. TherbacteriumrE.rcolirrequiresrsimplerorganicrmoleculesrforrgrowthrandrenergy—itris
thereforera:
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.


7. Whichrisrarlistrofrorganelles?
A) mitochondria,rchromatin,rendoplasmicrreticulum
B) peroxisomes,rlysosomes,rplasmarmembrane
C) proteasomes,rperoxisomes,rlysosomes
D) mitochondria,rendoplasmicrreticulum,rperoxisomes
E) Allrofrtheranswersrarercorrect.


8. WhichrlistrhasrthercellularrcomponentsrarrangedrinrorderrofrINCREASINGrsize?
A) aminoracidr<rproteinr<rmitochondrionr<rribosome
B) aminoracidr<rproteinr<rribosomer<rmitochondrion
C) aminoracidr<rribosomer<rproteinr<rmitochondrion
D) proteinr<raminoracidr<rmitochondrionr<rribosome
E) proteinr<rribosomer<rmitochondrionr<raminoracid


9. Therthree-
dimensionalrstructurerofrmacromoleculesrisrformedrandrmaintainedrprimarilyrthroughrnonc
ovalentrinteractions.r WhichronerofrtherfollowingrisrNOTrconsideredra
noncovalentrinteraction?
A) carbon-carbonrbonds
B) hydrogenrbonds
C) hydrophobicrinteractions
D) ionicrinteractions




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, E) vanrderrWaalsrinteractions
10. WhichrelementrisrNOTramongrtherfourrmostrabundantrinrlivingrorganisms?
A) carbon
B) hydrogen
C) nitrogen
D) oxygen
E) phosphorus


11. Therfourrcovalentrbondsrinrmethaner(CH4)rarerarrangedraroundrcarbonrtorgiverwhich
geometry?
A) linear
B) tetrahedral
C) trigonalrbipyramidal
D) trigonalrplanar
E) trigonalrpyramidal


12. Whatrfunctionalrgroupsrarerpresentronrthisrmolecule?




A) etherrandraldehyde
B) hydroxylrandraldehyde
C) hydroxylrandrcarboxylicracid
D) hydroxylrandrester
E) hydroxylrandrketone


13. Thermacromoleculesrthatrserverinrtherstoragerandrtransmissionrofrgeneticrinformation
are:
A) carbohydrates.
B) lipids.
C) membranes.
D) nucleicracids.
E) proteins.


14. Stereoisomersrthatrarernonsuperimposablermirrorrimagesrofreachrotherrarerknownras:




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