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

Test Bank: Lehninger Principles of Biochemistry, 7th Editio
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n, David L. Nelson Chapters 1-28.
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1. Insasbacterialscell,sthesDNAsissinsthe:
A) cellsenvelope.
B) cellsmembrane.
C) nucleoid.
D) nucleus.
E) ribosomes.


2. Asmajorschangesoccurringsinsthesevolutionsofseukaryotessfromsprokaryotesswassthe
developmentsof:
A) DNA.
B) photosyntheticscapability.
C) plasmasmembranes.
D) ribosomes.
E) thesnucleus.


3. Inseukaryotes,sthesnucleussissenclosedsbysasdoublesmembranescalledsthe:
A) cellsmembrane.
B) nuclearsenvelope.
C) nucleolus.
D) nucleoplasm.
E) nucleosome.


4. Thesdimensionssofslivingscellssareslimited,sonstheslowersendsbysthesminimumsnumbersofsbio
moleculessnecessarysforsfunction,sandsonsthesuppersendsbysthesratesofsdiffusionsof
solutesssuchsassoxygen.sExceptsforshighlyselongatedscells,stheysusuallyshaveslengthssandsdi
ameterssinsthesrangesof:
A) 0.1smstos10sm.
B) 0.3smstos30sm.
C) 0.3smstos100sm.
D) 1smstos100sm.
E) 1smstos300sm.




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,5. Whichsgroupsofssingle-celledsmicroorganismsshassmanysmemberssfoundsgrowingsin
extremesenvironments?
A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) Nonesofsthesanswerssisscorrect.


6. ThesbacteriumsE.scolisrequiresssimplesorganicsmoleculessforsgrowthsandsenergy—itsis
thereforesa:
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.


7. Whichsissaslistsofsorganelles?
A) mitochondria,schromatin,sendoplasmicsreticulum
B) peroxisomes,slysosomes,splasmasmembrane
C) proteasomes,speroxisomes,slysosomes
D) mitochondria,sendoplasmicsreticulum,speroxisomes
E) Allsofsthesanswerssarescorrect.


8. WhichslistshassthescellularscomponentssarrangedsinsordersofsINCREASINGssize?
A) aminosacids<sproteins<smitochondrions<sribosome
B) aminosacids<sproteins<sribosomes<smitochondrion
C) aminosacids<sribosomes<sproteins<smitochondrion
D) proteins<saminosacids<smitochondrions<sribosome
E) proteins<sribosomes<smitochondrions<saminosacid


9. Thesthree-
dimensionalsstructuresofsmacromoleculessissformedsandsmaintainedsprimarilysthroughsnon
covalentsinteractions.s WhichsonesofsthesfollowingsissNOTsconsideredsa
noncovalentsinteraction?
A) carbon-carbonsbonds
B) hydrogensbonds
C) hydrophobicsinteractions
D) ionicsinteractions




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, E) vansdersWaalssinteractions
10. WhichselementsissNOTsamongsthesfoursmostsabundantsinslivingsorganisms?
A) carbon
B) hydrogen
C) nitrogen
D) oxygen
E) phosphorus


11. Thesfourscovalentsbondssinsmethanes(CH4)saresarrangedsaroundscarbonstosgiveswhich
geometry?
A) linear
B) tetrahedral
C) trigonalsbipyramidal
D) trigonalsplanar
E) trigonalspyramidal


12. Whatsfunctionalsgroupssarespresentsonsthissmolecule?




A) ethersandsaldehyde
B) hydroxylsandsaldehyde
C) hydroxylsandscarboxylicsacid
D) hydroxylsandsester
E) hydroxylsandsketone


13. Thesmacromoleculessthatsservesinsthesstoragesandstransmissionsofsgeneticsinformation
are:
A) carbohydrates.
B) lipids.
C) membranes.
D) nucleicsacids.
E) proteins.


14. Stereoisomerssthatsaresnonsuperimposablesmirrorsimagessofseachsothersaresknownsas:




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, A) anomers.
B) cis-transsisomers.
C) diastereoisomers.
D) enantiomers.
E) geometricsisomers.




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